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【多选题】
下列关于地址转换的描述，正确的是（）A.
地址转换有效地解决了因特网地址短缺所面临的问题
B.
地址转换实现了对用户透明的网络外部地址的分配
C.
使用地址转换后，对 IP 包加密、快速转发不会造成什么影响
D.
地址转换为内部主机提供了一定的“隐私”保护
E.
地址转换使得网络调试变得更加简单
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举一反三
【简答题】汽油机燃烧室的形状有哪些。
【单选题】By the time when the course comes to an end, we ________ a lot about computers.
A.
will have learned
B.
are learning
C.
will learn
D.
have learned
【简答题】When women sit together to watch a movie on TV, at the same time they usually talk about a lot of subjects, including children, men, careers and what’s happening in their lives. When groups of men and...
【简答题】燃烧室的形状有哪些?
【简答题】When you are far away from home for the first time and have a lot to adjust to，you can't do it alone. However independent you are，it is good to have a roommate during your first year. Living with some...
【单选题】At first, his family thought the band’s busy touring schedule was to blame. But when Nick — 13 at the time — finally sought medical attention, doctors discovered that the problem was a lot more s...
A.
当尼克(当时是13岁)最终寻求医生治疗时，医生们却发现问题要严重得多。而开始时，家人以为乐队巡回演出的繁忙日程是造成这一后果的原因。
B.
开始时，家人以为乐队巡回演出的繁忙日程是造成这一后果的原因。但当尼克(当时是13岁)最终寻求医生治疗时，医生们却发现问题要严重得多。
【简答题】阅读理解。 When was the last time you laughed a lot? Most people are the victim of an uncontrollable fit of laughter at least once in their lives. But when it happens in front of the television cameras, it...
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