关于心脏杂音的形成机制,下列哪种是不正确的 A. * * 肌或腱索断裂,断端在心腔内摆动产

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问题:

关于心脏杂音的形成机制,下列哪种是不正确的

A. * * 肌或腱索断裂,断端在心腔内摆动产生涡流
B.血流速度越慢,漩涡越易产生,杂音越强
C.血流通过异常扩大或狭窄的血管腔产生漩涡
D.心脏内发生异常通道,产生分流,使血流加速而产生杂音
E.血流通过狭窄或关闭不全的瓣膜口产生漩涡可出现杂音

考点:卫生资格考试(中初级)呼吸科基础知识呼吸科主治医师基础知识
题型:单项选择题

阅读理解。

     Bob Pearson is an old man. He has two big houses and a new car. He has no wife. But he is the father

of four children. He has two sons and two daughters. One son is from England. His name is Bill. The other

son is from America. His name is Mike. One of his daughters is from Japan. Her name is Mikou. The other

one is from China. Her name is Lanlan. Bob Pearson is not the children's real (真的) father, but he loves

them very much. The children love their "father", too.

1. The children _____ Bob Pearson's real children.

A. is

B. isn't

C. are

D. aren't

2. His children are from _____ countries.

A. lot of

B. two

C. three

D. four

3. Bob Pearson _____ the children very much.

A. doesn't like

B. like

C. likes

D. don't like

4. Which is RIGHT?

A. Bob Pearson is a very nice young man.

B. Bill and Mikou come from the same (同样的) country.

C. Bob Pearson has a wife.

D. Lanlan is a Chinese girl.

题型:单项选择题

决定粉尘对机体作用性质的主要因素是()。

A.粉尘的化学成分

B.接触浓度

C.接触时间

D.粉尘的分散度

E.粉尘的类型

题型:单项选择题

当代医学科学研究和创新的"双刃剑"效应是指()

A.当代医学科学研究和创新带来了医学的进步

B.当代医学科学研究和创新带来了道德的退步

C.当代医学科学研究和创新促进了人类健康

D.当代医学科学研究和创新可能用于危害人类健康

E.当代医学科学研究和创新既有促进人类健康的价值又有用于危害人类健康的可能

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没有见到法的大师是什么行为展现?

题型:单项选择题

大方脉

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