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问题 单项选择题

正常情况下，肺通气阻力主要来自

A．惯性阻力
B．气道阻力
C．黏滞阻力
D．肺回缩力
E．肺泡表面张力

答案

参考答案：E

解析：正常情况下，肺通气阻力包括弹性阻力和非弹性阻力，前者约占阻力的70%，来自于肺组织的弹性纤维和肺泡表面张力。

单项选择题

不属心脏停搏类型的是（）。

A.严重心室纤颤

B.严重心房纤颤

C.心脏完全停止

D.心室停顿

E.心脏电-机械分离
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填空题

根据句意用所给词的适当形式填空。

1.  Our school life is very interesting and ______ (colour).

2.  The girls in blue ______ (dress) come from No.1 Middle School.

3.  My mum often does some ______ (sew) at home.

4.  This blouse is ______ (make) of silk.

5.  ______(final), he won the first prize for this match.

6.  People in the West are looking forward to ______ (stop) the wars.

7.  Some shops ______ (close) on Sundays.

8.  They ______ (choose) a red sofa at the shopping mall yesterday.

9.  This story is not interesting at all. It’s very ______(bored) .

10.The girl likes to wear ______ (colour) clothes.
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