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【单选题】
下面关于虚链路描述错误的是（）A.
如果网络中存在虚链接，一般情况下说明该网络设计存在问题，需要优化
B.
虚链路的存在增加了网络的复杂度
C.
虚链路可能带来环路
D.
虚链路上发送HELLO的时间间隔是
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反馈参考答案：
举一反三
【判断题】While the scientific method is applicable to studying natural sciences, it is not applicable to studying a nation’s economy.
A.
正确
B.
错误
【简答题】Honey from the African forest is not only a kind of natural sugar, it is also delicious. Most people, and many animals, like eating it. However, the only way for them to get that honey is to find a wi...
【简答题】Honey from the African forest is not only a kind of natural sugar, it is also delicious. Most people, and many animals, like eating it. However, the only way for them to get that honey is to find a wi...
【单选题】It is not natural _____ a child of his age to be so quiet in such a dangerous situation.
A.
for
B.
of
C.
to
D.
with
【简答题】Honey from the African forest is not only a kind of natural sugar, it is also delicious. Most people and many animals like eating it. However, the only way for them to get that honey is to find a wild...
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