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某商场计划购进A,B两种新型节能台灯共100盏,已知一盏A型台灯进价为30元,售价为45元,一盏B型台灯进价为50元,售价为70元,则: (1)若商场预计进货款为3500元,问:这两种台灯各购进了...
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