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标题: 求助OG10 83 [打印本页]

作者: niswzzhn 时间: 2007-9-10 17:50
标题: 求助OG10 83
83.
                    Any medical test will sometimes fail to detect
a condition when it is present and indicate that there is one when it is not.
(A)            a condition when it is present and indicate that there is one
(B)            when a condition is present and indicate that there is one
(C)            a condition when it is present and indicate that it is present
(D)            when a condition is present and indicate its presence
(E)            the presence of a condition when it is there and indicate its presence
解释上面说Choices B and D are imprecise in saying that a test will fail to detect when a condition is present, since the issue is the presence and not the timing of the condition. 请问是什么意思啊？谢谢大家。

作者: niswzzhn 时间: 2007-9-12 23:24
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