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【单选题】
对IPv6与IPv4的关系，下列描述正确的是（）A.
IPv6继承了IPv4的优点，摒弃了它的缺点，并有明显改进
B.
IPv4网络只需简单地更换协议栈就可以升级为IPv6网络
C.
IPv6t和IPv4不兼容
D.
运行于IPv4上的TCP和UDP协议也必须升级在IPv6上运行
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Task 22 Falls are the number one cause of death to old people at home. Most old people can live safely at home if they make a few changes. Falls are common as people are getting older. Up to half of h...
A.
are free from home accidents
B.
can improve their health
C.
are likely to live longer
D.
can live more safety
【简答题】Falls are the number one cause of death to old people at home. Most old people can live safely at home if they make a few changes. Falls are common as people are getting older. Up to half of home acci...
【简答题】Falls are the number one cause of death to old people at home. Most old people can live safely at home if they make a few changes. Falls are common as people are getting older. Up to half of home acci...
【简答题】Falls are the number one cause of accidental deaths in the home every year. (翻译成中文)
【简答题】Falls are the number one cause of death to old people at home. Most old people can live safely at home if they make a few changes. Falls are common as people are getting older. Up to half of home acci...
【单选题】Passage 1 Falls are the number one cause of death to old people at home. Most old people can live safely at home if they make a few changes. Falls are common as people are getting older. Up to half o...
A.
are free from home accidents
B.
can improve their health
C.
are likely to live longer
D.
can live more safely
【简答题】蠕变: 2. 持久强度: 3. 蠕变极限: 4. 松弛稳定性: 5. 剩余应力
【简答题】( )是海岸线变化的地带,是海陆交互作用的地方。
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