单选题:下列关于原材料能源统计的表述中正确的是( )。

题目内容:
下列关于原材料能源统计的表述中正确的是( )。 A.原材料能源统计报表的基层填报单位是产业活动单位
B.原材料能源的统计范围包括没有经过加工的自然物
C.原材料能源消费总值是用实际消费量乘以实际购进价格计算的
D.单位产品消耗量等于总消耗量除以全部产品产量
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