单项选择题
How many life buoys have your ship been exactly（）.
A.produced by B.met with C.offered of D.provided with
单项选择题 How many life buoys（）on board with self-igniting light?
单项选择题 Frapping lines are fitted to lifeboat davits to（）.
单项选择题 Fire fighting equipment requirements for a particular vessel may be found on the（）.
