A message by flashing light consists of the call，the identity，the text，and the ______.A.destinationB.answerC.timeD.ending

第1题

单选题A preferred-channel buoy will show a（）.A white light whose characteristic is Morse (A)B group-occulting white lightC composite group-flashing (2 + 1) white lightD composite group-flashing (2 + 1) red or green light

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第2题

单选题A message by flashing light consists of the call，the identity，the text，and the （）.A destinationB answerC timeD ending

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第3题

单选题A message by flashing light consists of the call，the text，the ending，and the（）.A identityB time of originC replyD procedure code

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第4题

单选题A towing light is a yellow light having the same characteristics as a(n)（）A special flashing lightB anchor lightC sternlightD masthead light

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第5题

单选题At 1920，the buoy forward of your starboard beam is（）.A an interrupted quick flashing buoyB Hog Island Lighted Bell BuoyC South Light BuoyD Sand Shoal Inlet Lighted Buoy A

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第6题

单选题As you approach mile 659.4 AHP，you see on the right descending bank a flashing green light. This light marks（）.A a lock that is openB a sunken bargeC a dolphin，water intake and dischargeD the end of a wharf

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第7题

单选题A flashing green light displayed at a single lock means that the lock is（）.A ready for entranceB ready for entrance，but gates cannot be closed completelyC being made ready for entranceD not ready for entrance

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