单项选择题
I’m on fire and have dangerous cargo on board. The most emergent assistance in this case would be（）.
A.life boat B.helicopter C.fire-fighting D.medicine
单项选择题 If the ship is alongside the wharf, what kind of（）is used?
单项选择题 If the weights are concentrated in the middle part, then（）will happen on board the ship.
单项选择题 I’ll ask the foreman and see（）he’ll agree.
