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【单选题】
四格表资料的卡方检验时无需校正,应满足的条件是A.
总例数大于40
B.
理论数大于5
C.
实际数均大于1
D.
总例数大于50或理论数大于5
E.
例数大于40且理论数大于5
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【简答题】If you want to do a school project on children’s rights, you can look on the Internet for some information. A United Nations website can show you plenty of useful information for the project. The Unit...
【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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