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【简答题】
简述IPv6的工作原理。
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反馈参考答案：
举一反三
【单选题】It was silly ____ you to give up ____ things that we all wanted.
A.
for, to do
B.
for, doing
C.
of, to do
D.
of, doing
【单选题】听力原文：M: It looks like we won't have enough time to do all we wanted to. F: Who says we won't? Let's get going. Q: What does the woman mean? (19)
A.
She wants to know who said they won't.
B.
She also doubts whether they can finish on time.
C.
She asks the man to go with her.
D.
She is confident of completing all they wanted to.
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