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当前学科:甲基叔丁基醚中级操作工
题目:
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2mol氧气和1mol二氧化碳混合后的平均分子量为()。(氧气的分子量为32,二氧化碳的分子量为44)
A . A、36.1
B . B、35.1
C . C、34.1
D . D、33.1
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