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问题 单项选择题

男性，30岁，自幼出现发作性呼气性呼吸困难。入院前3天喘息持续发作，伴咳嗽，少量白色粘液痰，体检：端坐呼吸、大汗、发绀，两肺呼吸音减弱，广泛哮鸣音，应诊断为

A．支气管哮喘

B．慢性支气管炎(喘息型)

C．哮喘持续状态

D．慢性支气管炎合并肺部感染

E．肺气肿合并自发性气胸

答案

参考答案：C

完形填空

小题1:.______  ______  ______ (依照) natural resources, Japan is the poorest country in Asia.

小题2:.They spent a long time in going into practical details _______  _______ (与有联系) the building of the stadiums for the 26th Summer Universiade (2011 Shenzhen).

小题3:. The missing boy had nowhere to stay and _______  _______ (结果为) sleeping in the

railway station.

小题4:. On the way to school, Mary _______  _______  _______ (突然遭遇) in the traffic jam.

小题5:.. The pretty girl, though ______ ______ (养育) in a rich family, behaves very badly at school.
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问答题 简答题

作用阀的制动保压状态如何？（绘图说明）
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