A.can be absorbed through the skin
B.causes irreversible damage to eye tissue
C.is a very unstable product
D.All of the above
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A.dump valve
B.deflector
C.separator
D.diverter
A.poor fix
B.good fix
C.poor signal quality
D.good signal quality
A.on an even keel
B.listing about 1° to the side the light is displayed on
C.listing over 5° With the light displayed on the high side
D.listing，and the chutes should be directed to the side where the light is displayed
A.two red lights
B.one green light
C.one white light
D.one amber light
A.circle of equal altitude
B.parallel of declination
C.parallel of altitude
D.vertical circle
最新試題
After being rescued from the vessel accident，the people agreed that they had much to（）.
A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.
The program of graphical predictions of height against time for a period of up to seven consecutive days is contained in（）.
An inflatable liferaft should be manually released from its cradle by（）.
An orange flag showing a black circle and square is a（）.
The Coast Radio Stations are found in（）.
After launching，an inflatable raft should be kept dry inside by（）.
Admiralty EasyTide（）.
Important changes to charts and lights（including temporary ones），radio signals and sailing directions are listed in（）.
For details of these and other lights the larger scale charts and Admiralty Lists should be （）.