在神经肌肉接头处,非去极化肌松药和乙酰胆碱的相互作用是()A.结合率改变 B.直接竞

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问题:

在神经肌肉接头处,非去极化肌松药和乙酰胆碱的相互作用是()

A.结合率改变

B.直接竞争

C.间接竞争

D.协同作用

E.代谢改变

考点:麻醉(医学高级)肌肉松弛药及其作用机制与临床应用肌肉松弛药及其作用机制与临床应用题库
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化学位移伪影的解释,哪个是错误的()

A.脂肪和水的氢质子共振频率相同

B.在频率编码时出现移位

C.在相位编码时出现移位

D.高场强容易出现化学位移伪影

E.任何MR系统都会出现化学位移伪影

题型:单项选择题

操作高压电气设备主回路时,操作人员必须(),并()或站在绝缘台上。

题型:单项选择题

根据个人所得税法律制度的规定,下列各项中,不属于个人所得税居民纳税人的有( )。

A.在中国境内有住所的个人

B.在中国境内无住所而在境内居住满1年的个人

C.在中国境内无住所又不居住的个人

D.在中国境内无住所而在中国境内居住不满1年的个人

题型:单项选择题

根据侵权行为成立的要件不同,侵权行为可分为______

A.积极侵权行为与消极侵权行为
B.直接侵权行为与间接侵权行为
C.单独侵权行为与共同侵权行为
D.一般侵权行为与特殊侵权行为

题型:单项选择题

If you often feel tired and the doctor can’t find anything wrong with you, you may be in a state of Subhealth (亚健康). Subhealth is a state between health and illness. Most of the subhealthy people are middle-aged ones who are usually stressed out because of work and family. And some of them are students who are having exams.
If you are subheahlty, it is not difficult for you to become well soon. You should have good living habits. For example, you should get up early and go to bed early. And you should exercise regularly. Exercising can keep you healthy. As for meals, it is better to eat less salt and sugar. Vegetables, fruit and fish are important to your body. You should eat more of them. It is not good to eat too much at one meal, because it may cause unhealthy changes in the digestive tract(消化道). And at last, a balanced diet is very helpful in staying away from subhealth.

What should you do if you are subhealthy

A. Relax and have good living habits.
B. Go to see the doctor and ask for some medicine.
C. Go to hospital in foreign countries.
D. Stay at home and not talk to others.

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