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【单选题】
下列关于金属性质的叙述中正确的是 [     ]
A.
钠与氧气反应时，产物是由O 2 的用量决定的
B.
铝箔在空气中受热可以熔化且会发生剧烈燃烧
C.
金属与非金属单质发生反应时，被氧化的一定是金属
D.
铁丝不论在空气中还是纯氧中都不会燃烧
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