6.“Full speed ahead” and “Full speed astern” are __ given by the officers or the pilots.
A.sailing orders
B.speed orders
C.wheel orders
D.telegraph orders
正确答案是D
6.“Full speed ahead” and “Full speed astern” are __ given by the officers or the pilots.
A.sailing orders
B.speed orders
C.wheel orders
D.telegraph orders
正确答案是D