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單項選擇題

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

你可能感興趣的試題

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

A.carried by hand to a fire
B.carried or rolled to a fire
C.recharged in the field
D.used on class "B" fires

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