單項(xiàng)選擇題Routine radio communications should be no more than().

A.one minute
B.three minutes
C.five minutes
D.eight minutes


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1.單項(xiàng)選擇題PORT A BIT SLUGGISH means that port rudder().

A.answers very well
B.rudder answers all right
C.answers slow
D.answers fast

2.單項(xiàng)選擇題Free communication effect is in direct proportion to().

A.length and width of space
B.length of space only
C.width of space only
D.neither length nor width

3.單項(xiàng)選擇題Electrical wiring on all T-Boats must be().

A.concealed to prevent mechanical damage
B.concealed so the boat can be maintained more easily
C.protected from the weather
D.in an accessible place behind the ceiling

4.單項(xiàng)選擇題DO NOT,REPEAT,NOT OVER-TAKE means that you should().

A.overtake
B.not overtake
C.overtake or not
D.decide if you should overtake

5.單項(xiàng)選擇題By regulation,you MUST keep a record of the use of your radiotelephone for at least().

A.one month
B.four months
C.six months
D.one year