A.結匯優(yōu)惠后匯率=匯率*(折數/10000) B.結匯優(yōu)惠后匯率=點數/10000 C.結匯優(yōu)惠后匯率=匯率+(匯率*折數/10000) D.結匯優(yōu)惠后匯率=匯率-(匯率*折數/10000)