Please（）search and rescue.

单项选择题MERSAR is replaced by（）.

A.IAMSAR
B.COMSAR
C.ICAO SAR
D.1979 SAR

单项选择题In case of your steering gear failed，（）should be exhibited in shapes or lights.

A.not under command
B.restricted in her ability to manoeuvre
C.restrained by her draught
D.underway

单项选择题If your radiotelephone fails while underway，（）.

A.You must visually signal oncoming vessels
B.You must immediately tie up in the nearest port until the radiotelephone is repaired
C.You must anchor until the radiotelephone is repaired
D.The loss of the radiotelephone must be considered in navigating the vessel

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

单项选择题If more than one raft is manned after the vessel has sunk，you should（）.

A.Go in a different direction in search of land
B.Spread out to increase the possibility of a search aircraft finding you
C.Reduce the number of rafts by getting as many people as possible into as few rafts as possible
D.Tie the rafts together and try to stay in a single group