feifei-77

sheikebeibei

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.

答案是d,为什么c是错的呢？c是加强结论，也可以作为假设啊，两个选项没有本质区别吧

sheikebeibei

哦哦~~~~这个解释更好，谢

skyemotion

选项C描述的范围过大。airplane,而原文讨论的是commercial air plane

sheikebeibei

恩恩，谢谢，懂了

kikisunflower

加强和假设不一样

假设一定是支持，支持不一定是假设