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问题 单项选择题

治疗阻塞性睡眠呼吸暂停低通气综合征OSAHS)，最常用的手术方式应为()

A．鼻息肉摘除术

B．鼻中隔矫正术

C．扁桃体切除术

D．腭垂腭咽成形术

E．气管切开术

答案

参考答案：D

单项选择题

使用（）组跨装运送32.63m的预应力粱时，允许中间加挂两辆游车。

A、N17型车

B、Nl5型桥梁专用车

C、桥梁专用车

D、长大货物车
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单项选择题

In a study of the effect of color on productivity, 50 of 100 factory workers were moved from their drab workroom to a brightly colored workroom. Both these workers and the 50 who remained in the drab workroom increased their productivity, probably as a result of the interest taken by researchers in the work of both groups during the study.
Which of the following, if true, would cast most doubt upon the author’s interpretation of the study results given above

A．The 50 workers moved to the brightly colored room performed precisely the same manufacturing task as the workers who remained in the drab workroom.

B．The drab workroom was designed to provide adequate space for at most 65 workers.

C．The 50 workers who moved to the brightly colored workroom were matched as closely as possible in age and level of training to the 50 workers who remained in the drab workroom.

D．Nearly all the workers in both groups had volunteered to move to the brightly colored workroom.

E．(E) Many of the workers who moved to the brightly colored workroom reported that they liked the drab workroom as well as or better than they liked the brightly colored workroom.
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