银行开立信用证是以自己的信用为申请人向受益人作出的有条件的付款保证，越是资信良好的银行，其开立的信用证就越容易被受益人接受。
参考答案：对
以下哪项不是棘球蚴病流行的因素
A．虫卵对环境的严重污染B．人与家畜和环境的密切接触C．牧区儿童喜欢与家犬亲昵D．吃烤羊肉串的人越来越多E．病畜内脏喂狗或乱抛
Speaker A: It took me ten years to build up my business, and it almost killed me.
Speaker B: Well, you know what they say:().
A. There is no smoke without fire.
B. Practice makes perfect.
C. All roads lead to Rome.
D. No pains, no gains.
