A trader's net profit for the year may be computed by using which of the following formulae?
A. Opening capital + drawings - capital introduced - closing capital
B. Closing capital + drawings - capital introduced - opening capital
C. Opening capital - drawings - capital introduced - closing capital
D. Opening capital - drawings + capital introduced - closing capital
IP卡
狗仔卡
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
千斤顶
显身卡