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题目材料：
Along one part of Califonia's San Andreas Fault, the land sometimes shifts slightly. Some researchers hypothesize that such shifts occur a few days before virtually all earthquakes measuring above 3.3 on the Richter scale of magnitude. Therefore, if these researchers are right, and if such shifts can be reliably detected when they occur, then it is possible to predict, merely by watching for shifts, whether such an earthquake will occur within a few days.
The argument is most vulnerable to which of the following criticism?
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A.It does not take into account that slight shifts and earthquakes of magnitude 3.3 or greater might both be caused by some third factor.
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B.It treats one particular indicator of earthquakes of a given magnitude as if it were the only such indicator.
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C.It mistakes evidence that earthquakes of a given magnitude can be predicted for evidence that all earthquakes can be predicted.
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D.It fails to establish that the shifts can be reliably predicted.
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E.The evidence offered is consistent with the majority of shifts' not being followed by an earthquake.
E显示答案
