下列物质的用途中,利用其化学性质的是  ①甲烷用作燃料   ②氢

下列物质的用途中,利用其化学性质的是 

甲烷用作燃料   氢气用于填充探空气球   氧气用于医疗急救   干冰用作制冷剂  焦炭用于炼铁工业

A①②③            B①③⑤          C③④⑤          D①④⑤

答案

B

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