A.on
B.by
C.in
D.for
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A.stop down
B.speed down
C.slow down
D.down slow
A.SOS，ZZZ，XXX
B.SOS，UUU，SSS
C.SOS，XXX，TTT
D.SOS，TTT，UUU
A.final topping off is occurring
B.first starting to receive fuel
C.hoses are being blown down
D.hoses are disconnected and being capped
A.at all times
B.during evening hours
C.unless another person is present
D.during drilling operations
A.shall
B.should
C.may
D.would
最新試題
Three SHORT BLASTS mean（）.
Which method is used to detect rot in manila lines?（）
In battery charging rooms，ventilation should be provided（）.
Which measure should NOT be taken to reduce the pounding of a vessel in a head sea?（）
I hope you don’t mind（）the radar for us in a short time.
Which statement is TRUE with respect to the elasticity of nylon mooring lines?（）.
Which mooring line is likely to undergo the most strain when docking a ship under normal conditions?（）
Which method of adjusting mooring lines is MOST useful for leaving a boat free to rise and fall with the tide?（）
Which term describes a part of a natural fiber line?（）
Which statement is TRUE about placing the eyes of two mooring lines on the same bollard?（）