单项选择题
A.the gun is being used to sound passing signals B.the vessel is in distress C.all vessels are to clear the area D.all is clear and it is safe to pass
If you are transmitting a distress message by radiotele...
单项选择题If you are transmitting a distress message by radiotelephone you should().
A.use English language B.always use the International Code C.preface it by the word interco D.follow the transmission with the radio alarm signal
If you are on the beach and are signaling to a small bo...
单项选择题If you are on the beach and are signaling to a small boat in distress that your present location is dangerous and they should land to the left,you would().
A.fire a green star to the left B.send the letter K by light and point to the left C.place an orange signal to your left as you signal with a white light D.send the code signal S followed by L
If we had stayed at that port much longer,we()the tropi...
单项选择题If we had stayed at that port much longer,we()the tropical storm.
A.will meet with B.met with C.would meet with D.would have met with