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问题 单项选择题

清洁灌肠的主要目的是

A．解除腹部手术后的胀气
B．术前肠道准备
C．为保胎孕妇解除便秘
D．治疗肠道感染
E．为高热病人降温

答案

参考答案：B

解析： 清洁灌肠的主要目的是解除便秘或为肠道手术、检查、分娩做准备或解毒或降温。

判断题

在取暖工况时，集中式空调加湿阀应在空气加热器投入工作之前打开。
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单项选择题

Students at a certain university have complained that some of their professors do not provide copies of their lecture notes at every class. The student body president has argued that, in order to further the educational purposes of the university, all professors should be required to post their lecture notes online.
Which of the following, if true, most weakens the students’ argument that the professors should be required to post their lecture notes online ？（）

A. At the most popular classes, there are often insufficient quantities of lecture note copies to accommodate all of the students.

B. Students have acknowledged that if the lecture notes are posted online, they will be less likely to go to class.

C. Professors complain that the university does not provide sufficient copying funds, so that professors often have to pay for copies of lecture notes out of their own pockets.

D. Over 80 percent of students have access to the Internet in their dorm rooms, and all students have 24-hour access to the Internet at the computer lab.

E. The university has publicly stated that one of the educational goals of the university is to help all students gain competency with the Internet.
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