应使用（）来清洗皮肤上沾染的油污。

A、有机溶剂 

B、肥皂 

C、丙酮

Pinching of the cargo hose between the vessel and the dock should be prevented by（）.

A.adjusting the hose supports

B.laying out an excess length of hose on deck

C.tying off the topping lifts and runners to winch heads

D.All of the above