it have been the failure to pick up directions from the ground control that caused the a

发布时间：2020-08-16 09:59:49

     it have been the failure to pick up directions from the ground control that caused the air crash?
A. Must
B. Could
C. Would
D. Should

网友回答

A. Must
(答案→)B. Could
C. Would
D. Should
解析：可联系答.案.网客服索取。
以上问题属网友观点，不代表本站立场，仅供参考！