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【单选题】
关于IPv6，下面的论述中正确的是A.
IPv6数据包的首部比IPv4复杂
B.
IPv6的地址分为单播、广播和任意播3种
C.
主机拥有的IPv6地址是唯一的
D.
IPv6地址长度为128比特
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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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