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问题 单项选择题

脾的功能是（）

A．主气 

B．主血脉 

C．统血 

D．纳气 

E．藏血

答案

参考答案：C

填空题
用方框中所给单词的适当形式填空。
have, drink, study, be away, education, so that
1. I ______ from my hometown for two years.
2. Would you like _______ some orange juice?
3. You look tired, why not _______ a short rest?
4. His brother is considering _______ abroad.
5. It was an _______ film that we saw yesterday.
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单项选择题

诊断阻塞性肺气肿，最有价值的是

A．PaO2低于正常

B．残气量/肺总量＞40%

C．第一秒用力呼气量/用力肺活量＜60%

D．最大通气量低于预计值的80%

E．潮气量低于预计值的80%
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