糖皮质激素可抑制气道变应性炎症，降低气道高反应性，其不良反应

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问题单项选择题

糖皮质激素可抑制气道变应性炎症，降低气道高反应性，其不良反应有

A．口干和皮疹
B．口咽部真菌感染
C．腹绞痛和腹泻
D．耳鸣和高血压
E．红斑和视力模糊

答案

参考答案：B

阅读理解

根据上下文和首字母提示写单词完成短文。

I 1.a______ Bob.This 2.i ______Mary. She is a 3.g______.She' is my good 4.f______ .

She is 5.n______years old. We are in the same 6.s______ She has a happy 7. f______.

There are 8. f people in her family. Her 9. p______ ,her brother, her sister and she.

10. H______mother is teacher. Her,11. f______ is a worker. Her brother and her sister

12. a______ very young

13. How old is Mary?

_______________________________

14. Is Mary's mother a worker?

_______________________________

单项选择题

齿轮工作的平稳性精度，就是规定齿轮在一转中，其瞬时（）的变化限制在一定的范围内。

A.传动比

B.转速

C.角速度

D.角速度、传动比