單項(xiàng)選擇題

Which of the following equipment is for protection against hypothermia?（）

A.Safety helmets
B.Buoyancy aids
C.Breathing apparatus
D.Immersion suits

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單項(xiàng)選擇題

Which of the following equipment is for protection against drowing?（）

A.Safety helmets
B.Buoyance aids
C.Breathing apparatus
D.Immersion suits

單項(xiàng)選擇題

Which of the following equipment is for body protection?（）

A.Safety helmets
B.Goggles and sepctacles
C.Breathing aparatus
D.Safety suits