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【判断题】
标准公差分为20个等级,用ITO1 、IT0、IT1、IT2,......IT18来表示。等级依次提高,标准公差值依次减小。A.
正确
B.
错误
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【单选题】听力原文：M: Do you know Joe Brown's number? W: No, but you can look it up in the telephone book. How can the man find Mr. Brown's phone number?
A.
By referring to the receptionist.
B.
By calling the telephone operator.
C.
By asking his friend.
D.
By finding it in the phone book.
【多选题】After finishing your dinner, you can look for the server to ask for the bill. You can say:
A.
Can I have my bill?
B.
I would like my check, please.
C.
I’m ready for my bill.
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