试题与答案

生活中许多物质含有碳酸钙,下列哪些物质中含有碳酸钙( ) A.①② B.①②③

题型:选择题

题目:

生活中许多物质含有碳酸钙,下列哪些物质中含有碳酸钙(  )

A.①②

B.①②③

C.②③④

D.①②③④

答案:

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