此题为多项选择题。
第1题
第3题
A.dewater the compartment
B.establish and maintain flooding boundaries
C.secure power to the compartment
D.counter flood to maintain even keel
第4题
A.The safety valve escape piping should be disconnected from the valve body and a blank inserted
B.The boiler vent valves should be opened
C.All hand-hole/manhole covers should be tightened up as much as possible to preclude any leaks
D.All of the above
第8题
Vent life dies quickly when exposed to light.
A.Y
B.N
C.NG
第9题
A、a little wooden black
B、a wooden little black
C、a little white wooden
D、a white little wooden
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