On a vessel with a single propeller,transverse force has the most effect on the vessel when the engine is put ______.
A.full ahead
B.full astern
C.half ahead
D.slow astern
正确答案是B
On a vessel with a single propeller,transverse force has the most effect on the vessel when the engine is put ______.
A.full ahead
B.full astern
C.half ahead
D.slow astern
正确答案是B