A.sheer strake
B.bilge strake
C.garboard strake
D.keel rib
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A.hydraulic system
B.pneumatic system
C.spare battery
D.hand crank
A.fever and thirst
B.nausea and dizziness
C.stomach cramps and diarrhea
D.reddening of skin and hives
A.cold and moist skin，high body temperature
B.cold and dry skin，low body temperature
C.hot and moist skin，high body temperature
D.hot and dry skin，high body temperature
A.vomiting
B.blue color and lack of breathing
C.irregular breathing
D.unconsciousness
A.under no conditions
B.at a maximum rate of two ounces per day
C.if gathered during or immediately after a hard rain
D.after mixing with an equal quantity of fresh water
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In the first 24 hours after abandoning a vessel，water should be given only to personnel who are（）.
In order for combustion to occur inside a piping system such as a vapor collection header in a marine emmission control system，there must be（）.
The Master or person in charge of a ship shall insure that each deck from which lifeboats are launched is（）.
The danger associated with using carbon dioxide in an enclosed space is（）.
The minimum concentration of a vapor in air which can form an explosive mixture is called the（）.
The maximum speed of lowering for a lifeboat on gravity davits is controlled by the（）.
Limit switches（）.
On a lifeboat equipped with Rottmer-type releasing gear，turning the releasing lever releases（）.
Number 3 lifeboat would be（）.
The depth over a shallow patch，（）about 1．5 miles southeastward of Nanshan Tou lighthouse，reduces to 8 meters.