一个五色环电阻器,它的色环排列依次为红黄黑黑棕,则该电阻的标称阻值为 ,允许误差为

A、water content
B、nutrition
C、microbial content
D、None Of The Above

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A、已销售产品的生产成本　
B、销售产品获得的收入
C、为销售产品而发生的广告费
D、因销售产品而支付的增值税