我国某出口外向型企业生产某种商品的成本为人民币30元／件，在

我国某出口外向型企业生产某种商品的成本为人民币30元／件，在国际市场上，1美元=7元人民币，按6美元／件的价格出售商品；一年后，美元兑换人民币的汇率下跌l0％，其他条件不变，为保持相同的价格和利润水平，该企业要将成本控制在：　　

A．37.8元／件

B．25.8元／件

C．34.2元／件

D．20元／件

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