單項(xiàng)選擇題

The bottom row of plating next to the keel of a lifeboat is known as the（）.

A.sheer strake
B.bilge strake
C.garboard strake
D.keel rib

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單項(xiàng)選擇題

The backup system on an electric start survival craft is a（）.

A.hydraulic system
B.pneumatic system
C.spare battery
D.hand crank

單項(xiàng)選擇題

Symptoms of sea sickness include（）.

A.fever and thirst
B.nausea and dizziness
C.stomach cramps and diarrhea
D.reddening of skin and hives