题干
同温、同压下决定气体体积的主要因素是（ ）
A：气体分子的直径
B：气体物质的量的多少
C：气体分子间的平均距离
D：气体分子的式量.
答案(点此获取答案解析）
B
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Her name is Li Li.
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I have four.
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It's a cat.
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