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單項(xiàng)選擇題

For small，first-degree burns the quickest method to relieve pain is to（）.

A.immerse the burn in cold water
B.administer aspirin
C.apply petroleum jelly
D.apply a bandage to exclude air

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單項(xiàng)選擇題

Drinking salt water will（）.

A.be safe if mixed with fresh water
B.prevent seasickness
C.dehydrate you
D.protect against heat cramps

單項(xiàng)選擇題

Chemical burns are caused by the skin coming in contact with（）.

A.acids or alkalies
B.diesel oil
C.acids，but not alkalies
D.alkalies，but not acids

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