腹部检查Murphy征阳性的疾病是()
A.急性胆囊炎
B.胆囊癌
C.急性胰腺炎
D.胰头癌
E.胆囊结石
参考答案:A
We know the boy______ from England, but where_______ his mother come from?[ ]
A. am; do
B. is; is
C. are; does
D. is; does
在托收业务中,广泛用于非贸易结算或贸易从属费用的收款方式是()。
A.光票托收
B.跟单托收
C.保理
D.信用证