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问题 单项选择题

经营性道路客货运输驾驶员和道路危险货物运输驾驶员在运输过程中不得超限、超载运输，连续驾驶时间不得超过（）个小时。

A.2

B.3

C.4

D.5

答案

参考答案：C

单项选择题

如果机油未变质且油量充足，发动机机油压力低的原因可能是（）

A.机油表失准

B.被润滑表面间隙过小

C.有爆燃现象

D.机油泵损坏
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单项选择题

A hospitalized client who has a living will is being fed through a nasogastric (NG) tube. During a bolus feeding, the client vomits and begins choking. Which of the following actions is most appropriate for the nurse to take

A．Clear the client's airway.

B．Make the client comfortable.

C．Start eardiopulmonary resuscitation.

D．Stop the feeding and remove the NG tube.
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