A buoy with a composite group-flashing light indicates a(n)().
Which of the following is MOST likely causing an intermittent flashing LED on an IR receiver when the remote control is not being used?()
A message by flashing light consists of the call,the text,the ending,and the().
An all-round flashing yellow light may be exhibited by a(n)().
When entering from seaward,a buoy displaying a single-flashing red light would indicate ().
A flashing red light displayed at a single lock means that the lock().
A flashing light is a light that().
A message by flashing light consists of the call,the identity,the text,and the ().
An all-round flashing yellow light may be exhibited by a(n)().
A flashing green light displayed at a single lock means that the lock is().