6. 大管輪於機艙控制室進行主機正倒車試車之英文為Tried ___________ of Main Engine have been conducted in Engine Control Room by Second Engineer，其空格為下列何者？
(A) left and right
(B) ahead and astern
(C) inward and outward
(D) upward and downward

答案：登入後查看
統計： A(32), B(668), C(45), D(37), E(0) #1767616