單項(xiàng)選擇題Is it safe()a rocket?

A.to shoot
B.to fire
C.to let go
D.to send to sky


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1.單項(xiàng)選擇題Instead of whipping an end of a line,a temporary means of preventing the line from unraveling is to tie a().

A.becket bend
B.blackwall hitch
C.figure-eight knot
D.square knot

3.單項(xiàng)選擇題In order to retrieve an inflatable life raft and place it on deck,you should heave on the().

A.lifelines
B.righting strap
C.sea anchor
D.towing bridle

4.單項(xiàng)選擇題In determining the scope of cable to be used when anchoring,what would NOT be considered?().

A.Depth of the water
B.Character of the holding ground
C.maintenance cost for the chain
D.Type of anchor cable

5.單項(xiàng)選擇題Immersion suits must be stowed().

A.in the pilothouse
B.on top of lockers
C.where readily accessible
D.on open deck areas