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问题 选择题

——Do you know________?

——This afternoon.

A．when will the policenman give us a talk

B．where will the policeman give us a talk

C．when the policenman give us a talk

D．where the policeman will give us a talk

答案

答案：C

题目分析：英语宾语从句中一般为陈述语序。根据下文，今天下午。可知上文问的是时间，选项A为倒装语序，故选C，你知道警察什么时候给我们作报告吗？

选择题

进入接触室的混和气体体积组成是：SO27%、O211%、N282%。现有100体积混和气体进入接触室，反应后的总体积变为97.2，则SO2的转化率为（    ）

A．50%

B．60%

C．80%

D．90%
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单项选择题

Technically a given category of insurance policy is underpriced if, over time, claims against it plus expenses associated with it exceed total income from premiums. But premium income can be invested and will then yield returns of its own. Therefore, an underpriced policy does not represent a net loss in every case.
The argument above is based on which of the following assumptions

A．No insurance policies are deliberately underpriced in order to attract customers to the insurance company offering such policies.

B．A policy that represents a net loss to the insurance company is not an underpriced people in every case.

C．There are policies for which the level of claims per year can be predicted with great accuracy before premiums are set.

D．The income earned by investing premium income is the most important determinant of an insurance company’s profits.

E．(E) The claims against at least some underpriced policies do not require paying out all of the premium income from those policies as soon as it is earned.
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