问题
选择题
The pilot, whether ______ or design, made the plane do a sharp turn. [ ]
A. by accident
B. at times
C. suddenly
D. all at once
答案
答案：A
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The pilot, whether ______ or design, made the plane do a sharp turn. [ ]
A. by accident
B. at times
C. suddenly
D. all at once
答案：A