单项选择题
A.20 minutes B.15 minutes C.10 minutes D.5 minutes
All engines in lifeboats and rescue boats shall be run ...
单项选择题All engines in lifeboats and rescue boats shall be run for a total period of not less than（）in weekly inspections.
A.2 minutes B.3 minutes C.4 minutes D.5 Minutes
The master shall ensure that any seafarers（）are provide...
单项选择题The master shall ensure that any seafarers（）are provided with an adequate period of rest.
A.who have performed work for 14 hours B.who have performed work in a scheduled rest period C.who have performed work in a scheduled work period D.who works hard
The hatch at the after end of the canopy in a lifeboat（...
单项选择题The hatch at the after end of the canopy in a lifeboat（）the after lifting hook, painter, and tow line.
A.give access to B.links up with C.have contact with D.is constructed of
