单项选择题
Keep buoy on starboard side. ()
A.把浮筒让到右舷。 B.向两个浮筒中间走。 C.把浮筒放在左舷。 D.保持浮筒在右舷。
单项选择题 We must grease and clean the derrick parts.()
单项选择题 The master will be back in no time. Will you start from me?()
单项选择题 The keel is a ship’s centerline. ()