W: Yes, it has a history of over 2 500 years.
When can the history of Chinese ink painting be traced back？
A. 1 500 years ago.
B. 2 000 years ago.
C. 2 500 years ago.
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What should students do when they want to stop their studies？
A. They should give up it at once.
B. They should think it carefully before make the decision.
C. They should choose another subject instead.
听力原文：M: Does John have your suitcase？
W: No, Bob does.
Who has the suitcase？
A. The woman.
Bob.
C. John.
对于修改信用证中增加的信用证金额，保兑行可以保兑也可以不保兑。 ()
A. 正确
B. 错误
大货样的英文是 ()
Approval sampie
B. Pre-production sample
C. Lab dip
D. Production sampie
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