大学MOOC Medical Imaging Diagnosis(China Medical University)1458252164 最新慕课完整章节测试答案
Chapter 1 Introduction
文章目录
- Chapter 1 Introduction
- Chapter 2 Respiratory System (Part I)
- Chapter 2 Respiratory System (Part II)
- Chapter 3 Circulation System (Part I)
- Chapter 3 Circulation System (Part II)
- Chapter 4 Digestive System (Part I)
- Chapter 4 Digestive System (Part II)
- Chapter 4 Digestive System (Part III)
- Chapter 5 Urinary System
- Chapter 7 Musculoskeletal System (Part I)
- Chapter 7 Musculoskeletal System (Part II)
- Chapter 7 Musculoskeletal System (Part III)
- Chapter 8 Nervous System (Part I)
- Chapter 9 Ophthalmology & Otorhinolaryngology
Chapter 1
1、单选题：
The discoverer of the X-ray is
选项：
A: Roentgen
B: Newton
C: Einstein
D: Mrs. Curie
答案: 【 Roentgen】
2、单选题：
Roentgen discovered the X-ray was in
选项：
A: 1895
B: 1795
C: 1695
D: 1885
答案: 【 1895】
3、单选题：
Special X-ray examination does not include
选项：
A: fluoroscopy
B: enlarged photography
C: molybdenum target mammography
D: tomography
答案: 【 fluoroscopy】
4、单选题：
The wavelength range of X-ray imaging is
选项：
A: 0.031 ～ 0.008nm
B: 0.0006 ～ 50nm
C: 0.0008 ～ 50nm
D: 0.031 ～ 50nm
答案: 【 0.031 ～ 0.008nm】
5、单选题：
The penetrating power of X-rays in different parts of the body, arranged from strong to weak, are as follows
选项：
A: gas, fat, liquid and soft tissue, bone
B: gas, liquid and soft tissue, fat, bone
C: bone, fat, fluid and soft tissue, gas
D: fat, gas, liquid and soft tissue, bone
答案: 【 gas, fat, liquid and soft tissue, bone】
6、单选题：
The tube voltage of high-kV photography should be higher than
选项：
A: 120kV
B: 60kV
C: 80kV
D: 100kV
答案: 【 120kV】
7、单选题：
Which of the following methods of introducing contrast agents is incorrect?
选项：
A: Inhalation
B: Oral
C: Perfusion
D: Puncture
E: Intravenous injection
答案: 【 Inhalation】
8、单选题：
The basic conditions for the formation of X-ray plain films does not include
选项：
A: X-ray fluorescence
B: X-ray has penetrating power.
C: There is a difference in density or thickness of the penetrated tissue.
D: Developing apparatus, such as film
E: Photosensitive effect of X-rays
答案: 【 X-ray fluorescence】
9、单选题：
The purpose of contrast examination is to
选项：
A: increase the artificial contrast of organs and tissues
B: increase the density of organs and tissues
C: reduce the density of organs and tissues
D: increase the natural contrast of organs and tissues
E: change the structure of organs and tissues
答案: 【 increase the artificial contrast of organs and tissues】
10、单选题：
The advantage of CT is
选项：
A: high density resolution
B: high spatial resolution
C: low density resolution
D: low spatial resolution
E: low density resolution and high spatial resolution
答案: 【 high density resolution】
11、单选题：
The basic conditions for the formation of X-ray plain film include
选项：
A: X-ray has penetrating power
B: There is a difference in density or thickness of the penetrated tissue
C: X-ray fluorescence
D: Photosensitive effect of X-ray
答案: 【 X-ray has penetrating power】
12、单选题：
The bone structure that is rarely seen on a chest radiograph is
选项：
A: lumbar vertebra
B: sternum
C: rib
D: clavicle
E: thoracic vertebra
答案: 【 lumbar vertebra】
13、单选题：
Components of conventional CT include
选项：
A: computer system
B: laser camera
C: superconducting coil
D: RF generator
E: probe
答案: 【 computer system】
14、单选题：
Which of the following does not belong to new CT technology?
选项：
A: HRCT
B: CTA
C: Virtual endoscope
D: Volume rendering
E: MIP
答案: 【 HRCT】
15、单选题：
The range of CT values is
选项：
A: -1000 ～ ＋ 1000
B: 0 ～ ＋ 1000
C: 0 ～ ＋ 256
D: 0 ～ ＋ 2000
E: -1000 ～ 0
答案: 【 -1000 ～ ＋ 1000】
16、单选题：
The intrinsic spatial resolution of HRCT should be
选项：
A: greater than 0.5mm
B: less than 0.5mm
C: greater than 1.5mm
D: less than 1.5mm
E: less than 1.0mm
答案: 【 greater than 0.5mm】
17、单选题：
Which principle of spiral CT scanning is correct?
选项：
A: The tube rotates and the bed moves simultaneously.
B: The tube rotates and the bed is stationary.
C: The tube is fixed and the bed moves continuously.
D: The tube rotates first and then the bed moves.
E: The tube and the bed are both fixed.
答案: 【 The tube rotates and the bed moves simultaneously.】
18、单选题：
Which of the following statements is incorrect for contrast-enhanced CT scans?
选项：
A: When the CT value of the lesion area is reduced, it is called "with enhancement".
B: When the CT value of the lesion area is unchanged, it is called "no enhancement".
C: When the CT value of the peripheral lesion area is enhanced, it is called "ring enhancement".
D: When the CT value of the lesion area is increased consistently, it is called "homogeneous enhancement".
E: When the CT value of the lesion area is unevenly increased, it is called "heterogeneous enhancement".
答案: 【 When the CT value of the lesion area is reduced, it is called "with enhancement".】
19、单选题：
The tissue with high signal on both T1WI and T2WI images is
选项：
A: fat
B: muscle
C: calcification
D: liver
E: cerebrospinal fluid
答案: 【 fat】
20、单选题：
MR is not sensitive to which of the following tissue
选项：
A: Bone
B: Brain tissue
C: Water
D: Soft tissue
答案: 【 Bone】
21、单选题：
Which of the following MRI examinations does not apply water imaging technology?
选项：
A: MR angiography
B: MR cholangiopancreatography
C: MR myelography
D: MR urography
答案: 【 MR angiography】
22、多选题：
Which of the following statements about CT images is incorrect?
选项：
A: Digital image
B: Tomographic image
C: Reconstructed image
D: Simulated image
E: Grayscale image
答案: 【 Digital image;
Tomographic image;
Reconstructed image;
Simulated image;
Grayscale image】
23、多选题：
The contrast agent iodine can cause allergic reactions. Which of the following are mild reactions?
选项：
A: Nausea, vomiting
B: Urticaria
C: Dizziness, headache
D: flushing
E: Asthma, dyspnea
答案: 【 Nausea, vomiting;
Urticaria;
Dizziness, headache;
flushing;
Asthma, dyspnea】
24、多选题：
What are the common areas for CT application?
选项：
A: Intervertebral disc
B: Trachea, bronchus, lung
C: Head
D: Abdomen
E: Limbs and joints
答案: 【 Intervertebral disc;
Trachea, bronchus, lung;
Head;
Abdomen】
25、多选题：
What are the characteristics of MR images?
选项：
A: Multi-parameter imaging
B: The blood has flowing avoid effect.
C: High density resolution
D: Paramagnetic substances can produce relaxation enhancement effect.
E: Multi-directional imaging
答案: 【 Multi-parameter imaging;
The blood has flowing avoid effect.;
High density resolution;
Paramagnetic substances can produce relaxation enhancement effect.】
Chapter 2 Respiratory System (Part I)
Respiratory System (Part I)
1、单选题：
How many milliliters of pleural effusion can be displayed on X-ray?
选项：
A: 300-350ml
B: 50-100ml
C: 100-150ml
D: 400-450ml
答案: 【 300-350ml】
2、单选题：
The common cause of hydropneumothorax is pleural effusion combined with____.
选项：
A: trauma
B: infection
C: bleeding
D: lung metastases
答案: 【 trauma】
3、单选题：
Which of the following statements about diffuse pleural mesothelioma is incorrect?
选项：
A: It can be classified as benign or malignant.
B: There are multiple pleural nodules or lumps.
C: There is a large amount of pleural effusion.
D: Irregular pleura is thick and wavy.
答案: 【 It can be classified as benign or malignant.】
4、单选题：
The thyroid behind the sternum tends to occur in_______
选项：
A: upper anterior mediastinum
B: middle anterior mediastinum
C: upper middle region of middle mediastinum
D: lower middle mediastinum
答案: 【 upper anterior mediastinum】
5、单选题：
Thymoma and teratoma are most likely to locate in_______.
选项：
A: middle anterior mediastinum
B: upper anterior mediastinum
C: upper middle region of middle mediastinum
D: lower middle mediastinum
答案: 【 middle anterior mediastinum】
6、单选题：
Neurogenic tumors are most likely to locate in_________.
选项：
A: posterior mediastinum
B: upper anterior mediastinum
C: Anterior mediastinum
D: upper middle region of middle mediastinum
答案: 【 posterior mediastinum】
7、单选题：
Which of the following diaphragm images is abnormal?
选项：
A: Turtle sign
B: The atelectasis is smooth and wavy.
C: Adult, the right diaphragmatic top is often slightly higher than the left diaphragm.
D: The anterior costophrenic angle is higher than the posterior one.
答案: 【 Turtle sign】
8、单选题：
The exudate produced by pleurisy can be________.
选项：
A: bloody
B: purulent
C: chylous
D: all of the above
答案: 【 all of the above】
9、单选题：
Heart, ascending aorta, aortic arch, trachea, main bronchus and their lymph nodes are located in______.
选项：
A: middle mediastinum
B: anterior mediastinum
C: posterior mediastinum
D: superior mediastinum
答案: 【 middle mediastinum】
10、单选题：
Bronchial cyst and lymphoma are most likely to locate in________
选项：
A: upper middle region of middle mediastinum
B: upper anterior mediastinum
C: middle anterior mediastinum
D: lower middle mediastinum
答案: 【 upper middle region of middle mediastinum】
11、单选题：
The most common site of pleural adhesions is_________.
选项：
A: costophrenic angle
B: pleura at the apex pulmonis
C: cardiophrenic angle
D: mediastinal pleura
答案: 【 costophrenic angle】
12、单选题：
The most common tumor in the anterior superior mediastinum, moving with swallow, is______
选项：
A: goiter
B: thymoma
C: teratoma
D: lymphoma
答案: 【 goiter】
13、单选题：
Which of the statements on invasive thymoma is incorrect?
选项：
A: Multiple metastases are likely to happen in the lung.
B: CT manifests as an irregular mass with unclear edges.
C: The main sign of mediastinal invasion is the disappearance of fat space.
D: It can grow along the pleura to the posterior mediastinum and pericardium on the same side.
E: It can grow along the pleura to the posterior mediastinum and pericardium on the same side.
答案: 【 Multiple metastases are likely to happen in the lung.】
14、单选题：
Which of the following statements about CT examination of chest lymphoma is incorrect?
选项：
A: Focus on observing pleural effusion.
B: It’s more accurate to display mediastinal lymph nodes.
C: It shows lung lesions connected to the mediastinum and hilus.
D: It shows pleura, chest wall and pericardial lesions.
E: It can help to determine vision for radiotherapy.
答案: 【 Focus on observing pleural effusion.】
15、单选题：
Which is the incorrect description about the mediastinal six zones?
选项：
A: The posterior wall of the esophagus is the dividing line of the middle and posterior mediastina.
B: The six-zone method is only applicable to the chest lateral image.
C: The narrow triangle surrounded by the posterior sternum, the anterior border of the heart, the ascending aorta, and the anterior tracheal wall is the anterior mediastinum.
D: Middle mediastinum is the area occupied by the heart, aortic arch, trachea, and hilum.
E: Posterior mediastinum is behind the anterior wall of the esophagus and besides thoracic vertebra.
答案: 【 The posterior wall of the esophagus is the dividing line of the middle and posterior mediastina.】
16、单选题：
Which of the following tumors often occurs in the posterior mediastinum?
选项：
A: Nerve sheath tumor
B: Thymopathy
C: Teratoma
D: Thyroid tumor
答案: 【 Nerve sheath tumor】
17、单选题：
Which of the following is the X-ray finding of teratomas?
选项：
A: There is bone shadow or tooth shadow in the tumor.
B: The tumor is located in the anterior mediastinum.
C: The tumor is round, oval or lobulated.
D: There are areas of reduced density in the tumor.
答案: 【 There is bone shadow or tooth shadow in the tumor.】
18、单选题：
Which is not an X-ray finding of thymoma?
选项：
A: The mass changes with deep breathing patterns.
B: The mass is located in the middle of the anterior mediastinum.
C: The mass is fusiform or flat.
D: The outline of the mass is lobulated or wavy.
E: There is multi-chamber calcification in the mass.
答案: 【 The mass changes with deep breathing patterns.】
19、单选题：
Malignant _____ can invade the pericardium and vena cava.
选项：
A: thymoma
B: teratoma
C: lymphoma
D: goiter
答案: 【 thymoma】
20、单选题：
The common mediastinal tumor in the hilum is_________
选项：
A: lymphoma
B: teratoma
C: retrosternal goiter
D: thymoma
答案: 【 lymphoma】
Chapter 2 Respiratory System (Part II)
Respiratory System (Part II)
1、单选题：
How many milliliters of pleural effusion can be displayed on X-ray?
选项：
A: 300-350ml
B: 50-100ml
C: 50-100ml
D: 400-450ml
答案: 【 300-350ml】
2、单选题：
The common cause of hydropneumothorax is pleural effusion combined with____.
选项：
A: trauma
B: infection
C: bleeding
D: lung metastases
答案: 【 trauma】
3、单选题：
Which of the following statements about diffuse pleural mesothelioma is incorrect?
选项：
A: It can be classified as benign or malignant.
B: There are multiple pleural nodules or lumps.
C: There is a large amount of pleural effusion.
D: Irregular pleura is thick and wavy.
答案: 【 It can be classified as benign or malignant.】
4、单选题：
The thyroid behind the sternum tends to occur in_______.
选项：
A: upper anterior mediastinum
B: middle anterior mediastinum
C: upper middle region of middle mediastinum
D: lower middle mediastinum
答案: 【 upper anterior mediastinum】
5、单选题：
Thymoma and teratoma are most likely to locate in______.
选项：
A: middle anterior mediastinum
B: upper anterior mediastinum
C: upper middle region of middle mediastinum
D: lower middle mediastinum
答案: 【 middle anterior mediastinum】
6、单选题：
Neurogenic tumors are most likely to locate in____.
选项：
A: posterior mediastinum
B: upper anterior mediastinum
C: Anterior mediastinum
D: upper middle region of middle mediastinum
答案: 【 posterior mediastinum】
7、单选题：
Which of the following diaphragm images is abnormal?
选项：
A: Turtle sign
B: The atelectasis is smooth and wavy.
C: Adult, the right diaphragmatic top is often slightly higher than the left diaphragm.
D: The anterior costophrenic angle is higher than the posterior one.
答案: 【 Turtle sign】
8、单选题：
The exudate produced by pleurisy can be_____.
选项：
A: all of the above
B: bloody
C: purulent
D: purulent
答案: 【 all of the above】
9、单选题：
Heart, ascending aorta, aortic arch, trachea, main bronchus and their lymph nodes are located in____.
选项：
A: middle mediastinum
B: anterior mediastinum
C: posterior mediastinum
D: superior mediastinum
答案: 【 middle mediastinum】
10、单选题：
Bronchial cyst and lymphoma are most likely to locate in_______.
选项：
A: upper middle region of middle mediastinum
B: upper middle region of middle mediastinum
C: middle anterior mediastinum
D: lower middle mediastinum
答案: 【 upper middle region of middle mediastinum】
11、单选题：
The most common site of pleural adhesions is_____.
选项：
A: costophrenic angle
B: pleura at the apex pulmonis
C: pleura at the apex pulmonis
D: mediastinal pleura
答案: 【 costophrenic angle】
12、单选题：
The most common tumor in the anterior superior mediastinum, moving with swallow, is___.
选项：
A: goiter
B: thymoma
C: teratoma
D: lymphoma
答案: 【 goiter】
13、单选题：
Which of the statements on invasive thymoma is incorrect?
选项：
A: Multiple metastases are likely to happen in the lung
B: CT manifests as an irregular mass with unclear edges
C: The main sign of mediastinal invasion is the disappearance of fat space
D: It can grow along the pleura to the posterior mediastinum and pericardium on the same side
E: It can enter the abdominal cavity through the aortic orfice and diaphragmatic aperture
答案: 【 Multiple metastases are likely to happen in the lung】
14、单选题：
Which of the following statements about CT examination of chest lymphoma is incorrect?
选项：
A: Focus on observing pleural effusion
B: It’s more accurate to display mediastinal lymph nodes
C: It shows lung lesions connected to the mediastinum and hilus
D: It shows pleura, chest wall and pericardial lesions
E: It can help to determine vision for radiotherapy
答案: 【 Focus on observing pleural effusion】
15、单选题：
Which is the incorrect description about the mediastinal six zones?
选项：
A: The posterior wall of the esophagus is the dividing line of the middle and posterior mediastina
B: The six-zone method is only applicable to the chest lateral image
C: The narrow triangle surrounded by the posterior sternum, the anterior border of the heart, the ascending aorta, and the anterior tracheal wall is the anterior mediastinum
D: Middle mediastinum is the area occupied by the heart, aortic arch, trachea, and hilum
E: Posterior mediastinum is behind the anterior wall of the esophagus and besides thoracic vertebra
答案: 【 The posterior wall of the esophagus is the dividing line of the middle and posterior mediastina】
16、单选题：
Which of the following tumors often occurs in the posterior mediastinum?
选项：
A: Nerve sheath tumor
B: Thymopathy
C: Teratoma
D: Thyroid tumor
答案: 【 Nerve sheath tumor】
17、单选题：
Which of the following is the X-ray finding of teratomas?
选项：
A: There is bone shadow or tooth shadow in the tumor
B: The tumor is located in the anterior mediastinum
C: The tumor is round, oval or lobulated
D: There are areas of reduced density in the tumor
答案: 【 There is bone shadow or tooth shadow in the tumor】
18、单选题：
Which is not an X-ray finding of thymoma?
选项：
A: Which is not an X-ray finding of thymoma?
B: The mass is located in the middle of the anterior mediastinum.
C: The mass is fusiform or flat
D: The outline of the mass is lobulated or wavy
E: There is multi-chamber calcification in the mass
答案: 【 Which is not an X-ray finding of thymoma?】
19、单选题：
Malignant ____ can invade the pericardium and vena cava.
选项：
A: thymoma
B: teratoma
C: lymphoma
D: goiter
答案: 【 thymoma】
20、单选题：
The common mediastinal tumor in the hilum is_________.
选项：
A: lymphoma
B: teratoma
C: retrosternal goiter
D: thymoma
答案: 【 lymphoma】
Chapter 3 Circulation System (Part I)
Circulation System (Part I)
1、单选题：
Which of the following is an invasive cardiovascular examination method?
选项：
A: Angiography
B: Conventional heart radiography
C: MRI cardiovascular examination
D: CT cardiovascular examination
答案: 【 Angiography】
2、单选题：
Which position is wrong for conventional cardiac projection?
选项：
A: kyphotic
B: posteroanterior (PA)
C: left anterior oblique (LAO)
D: right anterior oblique (RAO), barium swallowing
答案: 【 kyphotic】
3、单选题：
The heart-thoracic ratio of normal people should be less than_______.
选项：
A: 0.5
B: 0.6
C: 0.45
D: 0.4
答案: 【 0.5】
4、单选题：
Main X-ray finding of congestive cardiomyopathy is_______.
选项：
A: enlargement of left and right ventricles
B: enlargement of right atrium and left ventricle
C: enlargement of left atrium and right ventricle
D: enlargement of right ventricle
答案: 【 enlargement of left and right ventricles】
5、单选题：
The biggest difference between mitral stenosis and mitral insufficiency is____.
选项：
A: enlargement of the left ventricle
B: enlargement of the left atrium
C: lung congestion
D: pulmonary edema
答案: 【 enlargement of the left ventricle】
6、单选题：
Causes of decreased lung blood does not include_____.
选项：
A: low pulmonary artery pressure
B: blood output from right heart is blocked
C: increased pulmonary artery pressure resistance
D: severe stenosis of the pulmonary arterial branch
答案: 【 low pulmonary artery pressure】
7、单选题：
X-ray manifestations of increased pulmonary blood pressure do not include_______.
选项：
A: decreased lung transparency
B: increased and thickened pulmonary blood vessel texture
C: protrusion of pulmonary artery segment
D: clear edges of the dilated blood vessel
答案: 【 decreased lung transparency】
8、单选题：
Which of the following is the X-ray finding of left ventricular enlargement?
选项：
A: RAO, retrosternal space shrinks
B: AP, right cardiac margin shows double-chamber shadow or bilateral shadow
C: AP sees the third arch on the left cardiac margin
D: RAO, esophageal impression deepens
答案: 【 RAO, retrosternal space shrinks】
9、单选题：
Which of the following is the disease with simultaneous enlargement of both ventricles?
选项：
A: Ventricular septal defect
B: Mitral valve stenosis
C: Mitral valve insufficiency
D: Aortic valve stenosis
答案: 【 Ventricular septal defect】
10、单选题：
Which of the following diseases is primary cardiomyopathy?
选项：
A: Keshan disease
B: Myocarditis
C: Myocardial infarction
D: Ischemic cardiomyopathy
答案: 【 Keshan disease】
11、单选题：
Which of the following diseases can cause lung congestion?
选项：
A: Hyperthyroidism
B: Chronic obstructive pulmonary disease
C: Pulmonary artery stenosis
D: Pulmonary artery stenosis
答案: 【 Hyperthyroidism】
12、单选题：
The maximum transverse diameter of the heart means_____.
选项：
A: the sum of the distance from the most prominent point on the left heart edge to the midline and the distance from the most prominent point on the right heart edge to the midline
B: The vertical distance from the most prominent point on the left side of the heart shadow to the midline
C: The vertical distance from the most prominent point on the right side of the heart shadow to the midline
D: The distance between the most prominent points on the left and right sides of the heart shadow
E: The distance between the upper and lower junction of the right heart edge and the apex of the heart
答案: 【 the sum of the distance from the most prominent point on the left heart edge to the midline and the distance from the most prominent point on the right heart edge to the midline】
13、单选题：
Which is the most important X-ray finding of early right ventricular enlargement?
选项：
A: Bulge of right ventricular infundibular part and pulmonary artery segment
B: The apex of the heart is uplifted, and the heart shadow is shaped like mitral valve
C: The contact surface between the anterior edge of the heart and the anterior chest wall increases
D: Diaphragm of the ventricle increases
E: The opposite pulsation point moves down
答案: 【 Bulge of right ventricular infundibular part and pulmonary artery segment】
14、单选题：
When the right atrium is enlarged, the most sensitive sign of X-ray is:
选项：
A: AP, right atrium curve length> 1/2 of the heart height
B: AP, right atrium distends to the right
C: RAO, the posterior edge of the heart protrudes backward and downward
D: LAO, the upper anterior edge of the heart protrudes forward and upward.
E: Superior vena cava shadow widens.
答案: 【 AP, right atrium curve length> 1/2 of the heart height】
15、单选题：
Which one is not the cause of enlargement of the left atrium?
选项：
A: Atrial septal defect
B: Mitral valve stenosis
C: Mitral valve insufficiency
D: Cardiomyopathy
E: Aortic valve insufficiency
答案: 【 Atrial septal defect】
16、单选题：
Which one is the incorrect description on boot-shaped heart?
选项：
A: RAO, protrusion of pulmonary artery segment
B: AP, cardiac apex rounded up
C: AP, aorta widens
D: In lateral view, lower segment of the anterior margin of the heart protrudes
E: LAO, the interventricular sulcus shifts backward and upward
答案: 【 RAO, protrusion of pulmonary artery segment】
17、单选题：
CT enhancement and MRI of hypertrophic cardiomyopathy may have the following findings, but which one should be excluded?
选项：
A: Wall thrombus is often seen in the heart cavity
B: Ventricular septal thickening with limitation
C: Local thickening of ventricular wall with limitation
D: Obstruction of the outflow tract
E: Sometimes mitral regurgitation is seen
答案: 【 Wall thrombus is often seen in the heart cavity】
18、单选题：
The following are the findings of coronary angiography in coronary heart disease, but which one should be excluded?
选项：
A: Left ventricular regional movement abnormalities can be seen during left ventricular angiography
B: Irregular coronary cavity or filling defect
C: Coronary vascular occlusion or stenosis in varying degrees
D: It makes no difference until coronary luminal stenosis is above 50%
E: In severe stenosis, different degrees of collateral circulation can be seen
答案: 【 Left ventricular regional movement abnormalities can be seen during left ventricular angiography】
19、单选题：
The image findings of hypertrophic cardiomyopathy do not include:
选项：
A: The ratio of the left ventricular posterior wall to the ventricular septum is above 1.3
B: Plain film examination can be normal or of no specific signs
C: CT or MRI examination can show the thickening of the ventricular septum and wall
D: The ratio of left ventricular posterior wall to ventricular septum is above 1.5
E: Due to obstruction of the outflow tract, the ventricular wall thickens, and mitral regurgitation is visible in 50%
答案: 【 The ratio of the left ventricular posterior wall to the ventricular septum is above 1.3】
20、单选题：
Rheumatic carditis, the order of invasion of the valves is______.
选项：
A: mitral valve, aortic valve, tricuspid valve, pulmonary valve
B: mitral valve, tricuspid valve, pulmonary valve, aortic valve
C: mitral valve, tricuspid valve, pulmonary valve, aortic valve
D: aortic valve, tricuspid valve, pulmonary valve, mitral valve
E: pulmonary valve, aortic valve, tricuspid valve, mitral valve
答案: 【 mitral valve, aortic