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逻辑单题
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NO.12
中等
00:00
本题平均耗时:3分51秒
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正确率:55%

In the country of Seligia where asbestos has been used extensively in construction, that use is about to be banned, because the exposure of construction workers to asbestos can cause a certain type of cancer. We can predict that the ban will result in reducing the incidence of that type of cancer in Seligia by as much as 50 percent.

It is true that less than 30 percent of the death certificates of Seligians who have died of that cancer have “construction” listed as the deceased’s occupation. The cancer takes about 20 years after exposure to develop, however, and Seligians who have worked in
construction commonly turn to less strenuous occupations as they age. Seligian death certificates indicate only the deceased’s last occupation.

In the argument given, the two highlighted portions play which of the following roles?

The first is a prediction that argument seeks to defend, the second presents evidence that if not supplemented would cast doubt on that judgment.

The first is a prediction that the argument seeks to defend, the second is a finding, the accuracy of which is disputed by the argument as a whole.

The first is a prediction that the argument as a whole rejects the second presents evidence on which that rejection is based

The first is a prediction that the argument as a whole seeks to defend, the second is evidence that the defense can be at best partially successful.

The first is a prediction that is cited in order to justify a stated conclusion, the second is a consideration that has been raised against that conclusion.

Select one answer choice.

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