单项选择题
A.satellite communications B.navigational information C.weather information D.position reporting service
All towing vessels of 26 feet or longer while navigatin...
单项选择题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
All portable fire extinguishers must be capable of bein...
单项选择题All portable fire extinguishers must be capable of being（）.
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
All personnel on board a vessel should be familiar with...
单项选择题All personnel on board a vessel should be familiar with the rescue boat’s（）.
A.boarding and operating procedure B.maintenance schedules C.navigational systems D.fuel consumption rates
