单项选择题

It can be inferred that the author of the passage discusses "unmonitored workers'(line 6) primarily in order to ______.

A．compare the ratings of these workers with the ratings of monitored workers
B．provide an example of a case in which monitoring might be effective
C．provide evidence of an inappropriate use of CPMCS
D．emphasize the effect that CPMCS may have on workers' perceptions of their jobs
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单项选择题
According to the passage, a hygiene factor (line 13) is an aspect of a worker's performance that ______.
A．has no effect on the rating of a worker's performance
B．is so basic to performance that it is assumed to be adequate for all workers
C．is given less importance than it deserves in rating a worker's performance
D．if not likely to affect a worker's rating unless it is judged to be inadequate
单项选择题
The primary purpose of the passage is to ______.
A．explain the need for the introduction of an innovative strategy
B．discuss a study of the use of a particular method
C．recommend a course of action
D．resolved a difference of opinion
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