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标题: 大全test-2-4 [打印本页]

作者: greenbow43 时间: 2006-1-31 11:34
标题: 大全test-2-4

Reviewing historical data, medical researchers in California found that counties with the largest number of television sets per capita have had the lowest incidence of a serious brain disease, mosquito-borne encephalitis. The researchers have concluded that people in these counties stay indoors more and thus avoid exposure to the disease.

The researchers’ conclusion would be most strengthened if which of the following were true?

(A) Programs designed to control the size of disease-bearing mosquito populations have not affected the incidence of mosquito borne encephalitis.

(B) The occupations of county residents affect their risk of exposure to mosquito-borne encephalitis more than does television-watching.

(C) The incidence of mosquito-borne encephalitis in counties with the largest number of television sets per capita is likely to decrease even further.

(D) The more time people in a county spend outdoors, the greater their awareness of the dangers of mosquito-borne encephalitis.（E）

(E) The more television sets there are per capita in a county, the more time the average county resident spends watching television.

觉得E完全是无关，想不通阿，我觉得C更对

作者: mxcc705 时间: 2006-1-31 14:16

肯定是E,将有电视和在家时间长联系了起来.(前提是要知道有电视未必就会在家看电视,本来是不相关的通过E选项使两者相关了,因而加强)

GWD方法

作者: greenbow43 时间: 2006-2-2 11:27

这样解释有点道理

但现在看来E更像是Assumption,不像加强，加强应该是提供更多(further)证据，而不是跑回原点在assumption上做文章阿

昏~~~~

作者: kathy8446 时间: 2006-7-26 19:23

恩，E应该是正确的，在TV sets数量和在家时间搭桥（TV多的看的多，因而在家）。

我想问一下A选项，算不算也加强呢（当然力度没有E大），说一个控制项目无效，算不算排除他因？

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