物质都是由微粒构成的。下列物质由分子构成的是

物质都是由微粒构成的。下列物质由分子构成的是 ( )

A．二氧化碳 B．氯化钠 C．金刚石 D．铜

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物质都是由微粒构成的。下列物质由分子构成的是

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