智慧树慕课答案
1、单选题：
Which statement best describes an intracrine hormone effect? （ ）
选项：
A:The hormone acts within the secreting cell without being released
B:The hormone acts on neighboring non–hormone-secreting cells
C:The hormone travels via circulation to a distant target organ
D:The hormone inhibits hypothalamic release via long-loop feedback
答案: 【The hormone acts within the secreting cell without being released】点我阅读全文
1、多选题：
Which of the following statements accurately describe the historical overview of Beijing's origins and evolution?（ ）
选项：
A:The formation of ancient cities in Beijing was influenced by the surrounding natural environment.
B:Beijing's history dates back to the early Paleolithic era with human settlements.
C:The city has undergone significant changes throughout different dynasties, including the Yuan, Ming, and Qing dynasties.
D:Beijing has always been the capital of China since its establishment.
E:The early settlements in Beijing were primarily nomadic tribes.
答案: 【The formation of ancient cities in Beijing was influenced by the surrounding natural environment.;
Beijing's history dates back to the early Paleolithic era with human settlements.;
The city has undergone significant changes throughout different dynasties, including the Yuan, Ming, and Qing dynasties.】点我阅读全文
1、单选题：
In which historical period did Eastern flower arrangement art originate in China?
选项：
A:Tang Dynasty
B:Spring and Autumn Period and Warring States
C:Han Dynasty
D:Qin Dynasty
答案: 【Spring and Autumn Period and Warring States】点我阅读全文
1、单选题：
在一个复杂的PLC电机点动运行控制系统中，存在多个输入信号（如启动按钮、停止按钮、过载保护信号等）和多个输出信号（如电机正转、电机反转、指示灯等），并且需要辅助继电器来协调控制逻辑。以下关于辅助继电器在该系统中的应用描述，正确的是？
选项：
A:当过载保护信号触发时，辅助继电器可以用来切断电机正转和反转输出，同时点亮指示灯，且不影响其他无关输出信号
B:辅助继电器只能用于存储中间运算结果，不能参与控制逻辑的构建
C:在电机点动运行过程中，辅助继电器不能根据启动按钮和停止按钮的状态变化来改变自身状态
D:辅助继电器在系统中仅起到信号放大的作用，对控制逻辑的实现没有实质影响
答案: 【当过载保护信号触发时，辅助继电器可以用来切断电机正转和反转输出，同时点亮指示灯，且不影响其他无关输出信号】点我阅读全文
1、多选题：
关于健康的定义与三维健康观，以下说法正确的是？
选项：
A:健康的评估仅依赖生物医学指标
B:心理健康是健康的重要组成部分
C:健康仅指身体无病
D:社会适应能力影响个体健康
E:健康包括身体、精神和社会状态的完好
答案: 【心理健康是健康的重要组成部分;
社会适应能力影响个体健康;
健康包括身体、精神和社会状态的完好】点我阅读全文
1、单选题：
Which of the following best reflects the ability of organisms to respond to environmental changes?
选项：
A:Irritability
B:Photosynthesis
C:Cell division
D:Evolution
答案: 【Irritability】点我阅读全文