阿摩線上測驗
8. _______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(162), B(482), C(34), D(37), E(0) #2929011
統計： A(162), B(482), C(34), D(37), E(0) #2929011
