【名词&注释】
计算公式(calculation formula)、经营风险(business risk)、应收账款周转率(turnover of accounts receivable)、主营业务收入(the income from main business)
[单选题]关于平均收现期,下列计算公式错误的是()
A. 360/应收账款周转率
B. 应收账款平均余额*360/赊销收入
C. 应收账款平均余额*360/主营业务收入(the income from main business)
D. 应收账款平均余额*360/赊购净额