問題詳情
【題組】70、According to the text, why are test flights most dangerous?
(A) The plane may explode in the air.
(B) The pilot may lose control of the plane.
(C) The engines may be damaged.
(D) Too much air may get into the plane.
參考答案
答案：A
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)