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听力原文：W: Hi, Peter. I was surprised to see you in the class in Children's Literature yesterday. Are you also majoring in elementary education？
M: No, I'm not. But as a psychology major, I can use this to fulfill the requirement in developmental psychology.
Q: What do you learn from the conversation？
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根据UCP600规定，可转让信用证只能转让一次，但如果信用证有可分批装运的规定，则允许分若干部分分别转让。
A．Buy a new watch.B．Go to bed earlier.C．Change his job.D．See a doctor.
赵先生为单亲父亲，并且儿子年龄比较小，则赵先生家庭目前最为急需()。
听力原文：W: Can you tell me how long a formal visit lasts in the U.S.A？
M: It depends. Usually half an hour. It can last a bit longer if tea or coffee is brought, but never longer than an hour. Remember in no circumstances should you get your host tired of seeing you again.
Q: In most circumstances, how long does a visit last？
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