7. _______means: An emergency reversal operation of the main engine to avoid a collision.
(A) Emergency -stop
(B) Crash-stop
(C) Drop-back
(D) Backing-engine

答案：登入後查看
統計： A(73), B(346), C(24), D(19), E(0) #1444700

詳解 (共 1 筆)

#5231099
crash-stop 衝止距
(共 16 字，隱藏中）
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