A.Mine Safety Appliance Association
B.American Chemical Society
C.Marine Chemists Association
D.National Fire Protection Association
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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
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
最新試題
Lines drawn through points on the Earth having the same atmospheric pressure are known as （）.
Many of the lights on this coast are placed so high as to be frequently obscured by（）.
A sweep oar is an oar that is（）.
An orange flag showing a black circle and square is a（）.
A man aboard a vessel，signaling by raising and lowering his outstretched arms to each side，is indicating（）.
For details of these and other lights the larger scale charts and Admiralty Lists should be （）.
The Coast Radio Stations are found in（）.
A person who sees someone fall overboard should（）.
Before personnel are lifted from a vessel in a personnel basket，the vessel should be（）.
Admiralty EasyTide（）.