题目内容

According to the passage, naked mole rat colonies may differ from all other known vertebrate groups in which of the following ways？

A. Naked mole rats exhibit an extreme form. of altruism.
B. Naked mole rats are cooperative breeders.
C. Among naked mole rats, many males are permitted to breed with a single dominant female.
D. Among naked mole rats, different tasks are performed at different times in an individual’s life.
E. Among naked mole rats, fighting results in the selection of a breeding female.

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如果要满足患病率=发病率×病程，必须具备什么条件

A. 在相当长的时间内，病程相当稳定
B. 在相当长的时间内，发病率相当稳定
C. 在相当长的时间内，患病率相当稳定
D. 在相当长的时间内，当地人口相当稳定
E. 在相当长的时间内，发病事和病程都相当稳定

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The primary purpose of the passage is to______

A. describe in detail one research study regarding the impact of history textbooks on children’s attitudes and beliefs about certain cultures
B. describe revisions that should be made to United States history textbooks
C. discuss the difficulty of presenting an accurate history of the United States
D. argue that textbooks used in schools stereotype Native Americans and influence children’s attitudes
E. summarize ways in which some textbooks give distorted pictures of the political systems developed by various Native American groups

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Which of the following, if true, would most clearly have supported the conclusion referred

A. Ratings of productivity correlated highly with ratings of both accuracy and attendance.
B. Electronic monitoring greatly increased productivity.
C. Most supervisors based overall ratings of performance on measures of productivity alone.
D. Overall ratings of performance correlated more highly with measures of productivity than the researchers expected.
E. Overall ratings of performance correlated more highly with measures of accuracy than with measures of productivity.

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In an attempt to improve the overall performance of
clerical workers, many companies have introduced com-
puterized performance monitoring and control systems
(CPMCS) that record and report a worker’s computer-
(5) driven activities. However, at least one study has shown
that such monitoring may not be having the desired effect.
In the study, researchers asked monitored clerical workers
and their supervisors how assessments of productivity
affected supervisors’ ratings of workers’ performance. In
(10)contrast to unmonitored workers doing the same work,
who without exception identified the most important element
in their jobs as customer service, the monitored workers and
their supervisors all responded that productivity was the
critical factor in assigning ratings. This finding suggested
(15) that there should have been a strong correlation between a
monitored worker’s productivity and the overall rating the
worker received. However, measures of the relationship
between overall rating and individual elements of perfor-
mance clearly supported the conclusion that supervisors
(20) gave considerable weight to criteria such as
attendance .accuracy, and indications of customer
satisfaction.
It is possible that productivity may be a “hygiene
factor.” that is, if it is too low, it will hurt the overall
rating. But the evidence suggests that beyond the point at
(25) which productivity becomes “good enough.” higher
productivity per se is unlikely to improve a rating.
According to the passage, before the final results of the study were known, which of the following seemed likely？

A. That workers with the highest productivity would also be the most accurate
B. That workers who initially achieved high productivity ratings would continue to do so consistently
C. That the highest performance ratings would be achieved by workers with the highest productivity
D. That the most productive workers would be those whose supervisors claimed to value productivity
E. That supervisors who claimed to value productivity would place equal value on customer satisfaction

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