导致血吸虫性肝硬化的是其()。
A.毛蚴
B.童虫
C.尾蚴
D.虫卵
E.成虫
参考答案:C
This summer holiday I did an English course which _____ for four weeks. [ ]
A. lasts
B. lasted
C. was lasted
D. were lasted
符合下列条件之一的国内信用证卖方押汇业务,可作为低信用风险业务办理()。
A.单证相符
B.单据金额小于信用证金额
C.收到开证行到期付款确认书
D.收到客户承诺付款确认书