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问题 单项选择题 共用题干题

男性，23岁，近1个月常有低热，两天前咯血数口，胸片显示有模糊阴影伴有空洞。

确诊肺结核的重要依据，哪一项最重要（）。

A.胸片显示肺部有阴影

B.PPD阳性

C.痰结核菌阳性

D.血沉增快

E.痰中带血

答案

参考答案：C

单项选择题

防止食品腐败变质可用提高渗透压法，有腌渍法和______

A．糖淹法
B．醋淹法
C．酒淹法
D．干淹法
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填空题

用词的适当形式填空。

1. Do you learn English by _______ (ask) friends for help?

2. He enjoys _______ (help) others in trouble.

3. Miss Liu said that _______ (read) was good for us.

4. What is the best way _______ (study) physics?

5. He has trouble _______ (work) out the math problems.

6. What about _______ (go) out for a walk?

7. It is _______ (important) for me to know his story, because I don't know him.

8. Thousands of people _______ (lose) their lives in the earthquake last year.

9. Can you tell me the _______ (different) between the two words?

10. We are _______ (take) notes while the teacher is giving a lesson.

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