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單項選擇題

An “ABC” dry chemical fire extinguisher would be LEAST effective against a fire in（）.

A.a mattress
B.spilled liquids such as oil or paint
C.high voltage electrical gear
D.a trash can

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單項選擇題

AMVER is a system which provides（）.

A.satellite communications
B.navigational information
C.weather information
D.position reporting service

單項選擇題

All towing vessels of 26 feet or longer while navigating are required to carry which item? （）

A.At least two lifeboats
B.A radiotelephone
C.A radio direction finder
D.None of the above