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Before lead poisoning starts to cause serious damage, it can be detected through a screening test. Every test sometimes produces false positives, indicating that the people tested have lead poisoning, when, in fact, they do not; a false negative indicates that people do not have lead poisoning when, in fact, they do. To detect lead poisoning most accurately, medical workers should use the screening test which has the lowest proportion of false negative results.

Which of the following, if true, most strongly supports the above recommendation?

正确答案: B

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发表于 2016-10-15 17:23:37 来自手机 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
我怎么都觉得B不对啊。。。
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