4．神经调节（nervous regulation)

神经调节(nervous regulation)

A.机组氧气瓶低压

B.机组氧气瓶超压

C.经过减压阀减压后的氧气压力超过50PSI

D.经过减压阀减压后的氧气压力低于50PSI

帮忙写下名词解释

1.反射 2.神经调节 3.体液调节

4.反馈 5.负反馈 6.正反馈

A.深度觉

B.视野

C.视力

D.眼肌平衡

According to the doctor, what is the most proper way for the man to keep fit？

A．Going regularly to a gym.

B．Taking the right medicine.

C．Keeping a close watch on his weight.

D．Taking walks regularly.

If a refrigeration compressor will not start, the reason may be _____.

A.the pressure regulating valve is not closing

B.an excessive lack of refrigerant in the system

C.badly leaking discharge valves

D.worn piston rings

A．Most of these accidents are caused by cars.

B．Cyclists are not aware of traffic regulations.

C．Pedestrians often walk on the bicycle lanes.

D．There are too many motorists in the street.

A 12-year-old girl is brought to the emergency room with difficulty in breathing. On examination she is found to have dyspnea with audible wheezes and is diagnosed with asthma. The patient is given an inhaled medication (albuterol), which provides immediate relief of the bronchial constrictive symptoms. Questions 1. What autonomic nervous system (ANS) receptor does this medication target？ 2. What is the mechanism of action when these receptors are stimulated？ 3. What neurotransmitters or hormones normally activate these receptors？ 4. Which kind of nerve fiber or gland release these neurotransmitters or hormones？

Which of the following probably has the most calories？

A. Strawberry daiquiri. B. Regular beer.

C. Margarita: D. Wine.

He kept in Constant Contact with his family while he was in Australia．

A. gradual

B. regular

C. direst

D. occasional