辅助材料消耗定额中，与产品产量成正比的辅助材料，其消耗定额是按（）来计算的。

A、单位产品

B、主要原材料消耗量的一定比例

C、设备开动时间或工作日

D、统计资料或实际耗用量

She would have blushed had she been told as much in plain, set terms, and next, she might have grown indignant and asserted that her sole interest lay in the man she loved and her desire for him to make the best of himself.