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Which of the following most logically completes the passage? Appendicitis (inflammation of the appendix) is potentially fatal;consequently, patients with symptoms strongly suggesting appendicitis almostalways have their appendix removed. Theappropriate surgery is low-risk but performed unnecessarily in about 20 percentof all cases. A newly developed internalscan for appendicitis is highly accurate, producing two misdiagnoses for every98 correct diagnoses. Clearly, usingthis test, doctors can largely avoid unnecessary removals of the appendixwithout, however, performing any fewer necessary ones than before, since______. A. the patients who are correctly diagnosedwith this test as not having appendicitis invariably have medical conditionsthat are much less serious than appendicitis B. the misdiagnoses produced by thistest are always instances of attributing appendicitis to someone who does not,in fact, have it C. all of the patients who are diagnosed withthis test as having appendicitis do, in fact, have appendicitis D. every patient who is diagnosedwith this test as having appendicitis has more than one of the symptomsgenerally associated with appendicitis E. the only patients who are misdiagnosedusing this test are patients who lack one or more of the symptoms that aregenerally associated with appendicitis
看到讨论的有B也有C的 到底答案应该是哪个 我的答案里显示的是B 但是想不明白为什么，求详解啊
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发表于 2015-11-1 11:59:22
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