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單項(xiàng)選擇題

Immediately after abandoning a vessel, lookouts should be posted aboard liferafts to look for（）

A.survivors in the water
B.food and water
C.land
D.bad weather

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單項(xiàng)選擇題

When administering artificial respiration to an adult, the breathing cycle should be repeated about （）

A.12 to 15 times per minute
B.18 to 20 times per minute
C.20 to 25 times per minute
D.as fast as possible

單項(xiàng)選擇題

When administering artificial respiration, it is of the utmost important to （）

A.use the mouth-to-mouth method
B.clear airways
C.use rhythmic pressure method
D.know all approved methods

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