Rwchinak第二次请进~!GWD 21-Q4 速速请教!!!

 GWD21-Q4:  Which of the following most logically completes the passage?

Appendicitis (inflammation of the appendix) is potentially fatal; consequently, patients with symptoms strongly suggesting appendicitis almost always have their appendix removed.  The appropriate surgery is low-risk but performed unnecessarily in about 20 percent of all cases.  A newly developed internal scan for appendicitis is highly accurate, producing two misdiagnoses for every 98 correct diagnoses.  Clearly, using this test, doctors can largely avoid unnecessary removals of the appendix without, however, performing any fewer necessary ones than before, since ______.

A.      the patients who are correctly diagnosed with this test as not having appendicitis invariably have medical conditions that are much less serious than appendicitis

B.      the misdiagnoses produced by this test are always instances of attributing appendicitis to someone who does not, in fact, have it

C.      all of the patients who are diagnosed with this test as having appendicitis do, in fact, have appendicitis

D.      every patient who is diagnosed with this test as having appendicitis has more than one of the symptoms generally associated with appendicitis

E.       the only patients who are misdiagnosed using this test are patients who lack one or more of the symptoms that are generally associated with appendicitis

红线部分不懂, 特别是红线加大加粗的部分不明白! 导致做题困难. 请高手指点!谢谢!

红线部分不懂, 特别是红线加大加粗的部分不明白! 导致做题困难. 请高手指点!谢谢!

红线部分不懂, 特别是红线加大加粗的部分不明白! 导致做题困难. 请高手指点!谢谢!

显然，医生使用新的方法可以避免不必要的手术；然而同时“有必要实施手术”的数量确并没有减少

B.   之前的“误诊"多数是把实际上“有必要进行手术”情况判断为“不需要”

但是我觉得B选项中THIS TEST 很容易让人误以为它指的是 A newly developed internal scan,即 这个新的TEST.

你觉得呢?

谢谢你!!!

抱歉，似乎是我翻译错了

this test就是指newly developed

原文说A newly developed internal scan for appendicitis is highly accurate, producing two misdiagnoses for every 98 correct diagnoses.

新test有2/98的误诊率，而B是说误诊的情况都是把没有病的人误诊为需要做手术

不过感觉这样的话，B的理由似乎牵强了点

我想是不是因为即使this test misdiagnose了, 也还是比原来要准确很多, 2%的错误症断也只是把不需要手术的人进行手术? 所以还是保险的?

你觉得呢?

谢谢!

如果B真的这么理解

那么新技术和原技术相比只是把错误率20％降到2％

那么又和原文的结果without, performing any fewer 冲突

小声说下我这样理解的哈。。。

最后一句的意思其实是说用这种新技术，医生们可以在保证给每个需要做手术的患者都做了手术（不会漏掉），同时减少给不需要做手术的患者做手术的几率（因为以前是有20%没有得病而做了手术，现在只有2%了，错误率大大减少了）

因此B选项是对的，意思也就是说这个新技术产生的误诊也都是那些没得病却给做手术的，没有说得了病没测出来的。

等达人拍砖～

原文观点是这种测试可以避免不必要的手术

B选项说这种测试的误诊就是“有阑尾炎的人被误诊为没有阑尾炎”，就是说这种测试情况下，只有可能少做，不可能多做，所以符合原文观点 ，这道题好搞啊！