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问题 单项选择题

当场站控制室内燃气泄漏报警器显示，达到爆炸（）20%以下时，值班人员才可进入现场进行检查，查明原因及时向上级汇报后，进行抢修。

A、上限

B、下限

C、数值

D、极限

答案

参考答案：B

单项选择题

以下β受体阻滞剂中，哪一个是高水溶性的。而且主要通过肾排泄，不通过血脑屏障，其有效剂量容易控制（）。

A.以上都不是

B.阿替洛尔

C.美托洛尔

D.吲哚洛尔

E.普萘洛尔
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单项选择题

During the night, a 50-year-old Vietnam veteran with posttraumatic stress syndrome wakens shaking and tells you that someone is trying to smother him. What is the appropriate response for the nurse in this situation

A．"It was a bad dream. You are safe. I'll stay here with you until you go back to sleep. "

B．"We can talk about it tomorrow. Try to see if you can get back to sleep. "

C．"It was only a dream. There's nothing to be frightened about. "

D．"I'll call the physician and see whether I can get you medication to help you go back to sleep. "
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