单项选择题

Which procedure should be followed when individuals are rescued in cold climates and suffer from hypothermia?（）

A.Give them brandy
B.Keep them in motion
C.Immerse them in a warm bath (105°F，40°C)
D.Cover them with an electric blanket set for maximum temperature

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单项选择题

Which of the following statements regarding low expansion foam and its application is INCORRECT?（）.

A.Foam should not be used on electrical fires
B.One kilo of low expansion foam solution produces much more foam
C.Foam is only efficient when it covers the top of burning combustibles
D.A stream of foam should be deflected off the deck in order to best agitate the fire

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Which of the following is not a maritime perils?（）.

A.Stranding or grounding
B.Striking upon rocks or shoals
C.Collision between ships
D.Fire

单项选择题

Which is the proper method of determining whether a portable CO₂ fire extinguisher needs recharging?（）

A.Check the tag to see when the extinguisher was last charged
B.Release a small amount of CO₂; if the CO₂ discharges，the extinguisher is acceptable
C.Weigh the extinguisher and compare the weight against that stamped on the valve
D.Recharge the extinguisher at least once each year