A.lay
B.lies
C.being lain
D.lying
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A.frostbite
B.skin burns
C.asphyxiation
D.an explosive reaction
A.sheer strake
B.bilge strake
C.garboard strake
D.keel rib
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
最新試題
Lifeboat hatchets should be（）.
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（）.
If help has not arrived in 10-12 hours after you abandon a vessel in a survival craft，you should（）.
The danger associated with using carbon dioxide in an enclosed space is（）.
On an oceangoing vessel，for each person a lifeboat (without desalting kits) is certified to carry，the boat must be supplied with（）.
Sign(s) of respiratory arrest requiring artificial respiration is(are)（）.
Limit switches（）.
The minimum concentration of a vapor in air which can form an explosive mixture is called the（）.
The depth over a shallow patch，（）about 1．5 miles southeastward of Nanshan Tou lighthouse，reduces to 8 meters.
The grab rail of a metal lifeboat is normally located（）.