A.does not change
B.improves rapidly
C.improves only slightly
D.becomes poor
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A.Scrubber
B.Demister
C.Deck water seal
D.Final filter
A.Apply ice-cold compress and renew every 4 hours
B.Commence artificial respiration immediately
C.Give enema
D.Pass catheter into bladder
A.Record of drafts
B.Hull reports
C.Anchor record
D.Machinery repair book
A.The unit is working properly
B.The face mask is not sealed properly
C.The air bottle needs to be refilled
D.The air supply hose has a leak
A.corrosive
B.class B poison
C.oxidizer
D.explosive
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AMVER is a system which provides（）.
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