单项选择题
Questions 11 to 18 are based on the conversation you have just heard.
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A.Husband and wife.
B.Lawyer and client.
C.Saleswoman and customer.
D.Waitress and customer.
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单项选择题
According to Dr. Chin, what makes it possible to track down any paper work is to ______.
A.make all the imperfections of machines deliberate
B.find out the guilty creator of the counterfeit document
C.allow more imperfectly designed printers to be sold
D.mark all the printers in a special and secret way
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单项选择题
A.incomeB.paymentC.awardD.reward
A.income
B.payment
C.award
D.reward
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