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【单选题】
某产品的单位变动成本为60元，产品的市场价格为100元，如果企业的固定成本为 50000元，目标利润为2500000元。 根据资料计算该产品的保本销售量(即盈亏临界点销售量)为( )件。A.
1000
B.
1250
C.
1500
D.
1750
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