We are loading dangerous cargo, no （）, please.

单项选择题If there is a fire on board, inform the bridge and give the （）at once.

A.sound
B.sounding
C.alarm
D.signal

单项选择题Cast sea anchor to （）the speed of drifting raft.

A.control
B.controlling
C.controlled
D.controls

单项选择题（）the raft.

A.Right
B.Re-right
C.Toright
D.Beright

单项选择题“In no time” means（）.

A. have no time
B. in a minute
C. a long time
D. on time

单项选择题Make （）the fore rope and lay out the embarkation ladder.

A.fast
B.faster
C.last
D.from

单项选择题Detach the fore and aft side hooks, （）the fore and aft boat nests.

A. take in
B. take on
C. take off
D. take down

单项选择题Take （）of hydrants, fire hoses and nozzles.

A.careful
B.care
C.careless
D.carefully

单项选择题Water can put out common fires, such as （）.

A.wood，paper
B.textile
C.A+B
D.oil

单项选择题For the duties （）in one emergency, one person may do more than one job and one job may be done by more than one person.

A.assigning
B.assign
C.toassign
D.assigned

单项选择题Seven short blasts continued for one minute means （）.

A. fire alarm
B. boat alarm
C. man overboard
D. emergency alarm