77. How do the airlines expect to prevent commercial plane crashes? Studies have shown that pilot error contributes to two-thirds of all such crashes. To address this problem, the airline have upgraded their training programs by increasing the hours of classroom instruction and emphasizing communication skills in the cockpit. But it is unrealistic to expect such measures to compensate for pilots’ lack of actual flying time. Therefore, the airlines should rethink their training approach to reducing commercial crashes.
Which one of the following is an assumption upon which the argument depends?
A. Training programs can eliminate pilot errors.
B. Commercial pilot routinely undergo additional training throughout their careers.
C. The number of airline crashes will decrease if pilot training programs focus on increasing actual flying time.
D. Lack of actual flying time is an important contributor to pilot error in commercial plane crashes.
E. Communication skills are not important to pilot training programs.
我认为C更正确，它架起了 commercial crashes和lack of actual flying time 之间的桥梁。
用not +weaken 的方法，也正确呀。
该题最后一句是说approach to reducing the commercial crashes ,为什么是无关呢？
能用充分必要条件解释吗？这是因果型吗。昨天看了lawyer的一个帖子，晕了。
原文的推理是: pilot error 引起了 crash
而结论是pilots’ lack of actual flying time 影响了降低crash目标的实现, 因而要rethink the programme.
D架起了actual flying time 和crash之间的桥梁,所以正确.
但是C,架起了pilots’ lack of actual flying time和crash之间的桥梁,为什么就不对了呢???
Help!!!!!!
顶上来~~~~~
哪位NN帮忙解答一下啊?
为什么C不对~~
lawyer说的讨论贴偶也找不到阿~`
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