慕课标签存档订阅

Eviews软件介绍——课后题

1、判断题：
‎残差指的是被解释变量的观测值与估计值之差。‎
选项：
A: 正确
B: 错误
答案: 【 正确】点我阅读全文

True or false

1、判断题：
‌Linda is taller of the two sisters.‎
选项：
A: 正确
B: 错误
答案: 【 错误】点我阅读全文

体积功计算

1、单选题：
计算1 mol理想气体在下列三个过程中所做的体积功。已知始态体积为25 dm3，终态体积为100 dm3，始态及终态温度均为100 ℃。‌（1）等温可逆膨胀；‌（2）向真空膨胀；‌（3）在外压恒定为气体终态的压力下膨胀；‌‌‌
选项：
A: (1) 0 J  (2) -4299J (3) -2326 J
B: (1) -4299 J  (2) 0J (3) -2326 J
C: (1) -4299J  (2) 0J (3) -3245 J
D: (1) -4299 J  (2) -2326J (3) 0 J
答案: 【 (1) -4299 J  (2) 0J (3) -2326 J】点我阅读全文

1.简述心脏病中拔牙的禁忌症。

1、填空题：
1.简述心脏病中拔牙的禁忌症。‌‎‌
答案: 【 答：①有近期心肌梗死病史者（6月以内）；②近期心绞痛频繁发作；③心功能Ⅲ-Ⅳ级或有端坐呼吸、发绀、颈静脉怒张、下肢水肿等症状；④心脏病合并高血压者，应先治疗其高血压后拔牙；⑤有三度或二度Ⅱ型房室传导阻滞、双束支阻滞、阿斯综合征史者。】点我阅读全文

第一周 测试与作业

1、多选题：
‎家禽主要疾病的发生与流行不断变化，呈现出了哪些新的特点？​
选项：
A: 新病不断出现
B: 常见传染病病症复杂化
C: 免疫抑制性疾病危害严重
D: 细菌耐药菌株增多，药物抗菌面临挑战
答案: 【 新病不断出现;
常见传染病病症复杂化;
免疫抑制性疾病危害严重;
细菌耐药菌株增多，药物抗菌面临挑战】点我阅读全文

Analyze the following text

1、填空题：
  1 It is a common knowledge that education plays an important role in our lives. The utmost level of education is undoubtedly to have a university degree. However, not every university may   meet your expectations. In order to state that you are a graduate of a good university, there should be some requirements to be met. In my opinion, a good university should have qualified teachers, technologically   adequate buildings and many facilities for students.‌      2 First of all, it must have enough qualified teachers for each course. Qualified teachers should   have adequate teaching skills in their subjects. Without adequate teaching skills, it will be difficult for the teacher to transfer his/her knowledge to the students. Also, as a person, the teacher should have proper personalities, that is, a teacher should be kind, supportive and   understanding to his/her students. Otherwise, they may be disliked. So, good teachers are indispensable for a good university.‌      3 Secondly, a good university must have many buildings with adequate high technology facilities with students. The classrooms must be large enough and  well–equipped. A small classroom or a classroom without  technological supplies such as the internet or television will certainly demotivate students. In addition, libraries should have enough books and materials for students. This is very important to do research for students' studies or assignments. All these above  considered, technologically developed buildings are necessary for a good  university education.‌     4 Finally, a good  university should have many facilities for students. For example, there  must be enough sport centers and cafes for students to spend their time.  Since students spend most of their time studying at school, they need a place  to rest and chat with their friends.‌ In addition, students sometimes need to get over their stress spending time in a sport center. Thus, beside academic study, a good university should provide social opportunities to its students.‌     5 In conclusion, universities are places where students spend the most important stage of their lives. Universities should support the learning process with qualified teachers, technologically adequate buildings and many social facilities. Students should become familiar with all these characteristics so that they can choose a good university, which will affect their future.‌Question:‌Identify three parts of the essay: introductory paragraph, body paragraphs and concluding paragraph. ‌‌‌‍‌
答案: 【 Introductory paragraph: Paragraph 1.
Body paragraphs: Paragraph 2-4.
Concluding paragraph: Paragraph 5】点我阅读全文

第8章单元测试

1、单选题：

‍

‎选项：
A:
B:
C:
D:
答案: 【 】点我阅读全文

第一章单元测验

1、单选题：
‍在其它因素不变的情况下，如果商品价格总额增加1倍，则流通中的货币需要量将会________。​
选项：
A: 增加2倍
B: 减少2倍
C: 增加1倍
D: 减少1倍
E: 不变
答案: 【 增加1倍】点我阅读全文

第1-1讲 二阶与三阶行列式随堂测验

1、单选题：

​

‌选项：
A:
B:
C:
D:
答案: 【 】点我阅读全文

第一周单元测验

1、单选题：
‏A2的图幅尺寸是（ ） ‏‏‏‏‏
选项：
A: 420×594
B: 840×1189
C: 420×297
D: 210×297
答案: 【 420×594】点我阅读全文