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【单选题】
以太网交换机在接收入到数据帧时,如果没有在MAC地址表中查找到目的MAC地址,则( )A.
把以太网帧复制到所有的端口
B.
把以太网帧传送到特定端口
C.
把以太网帧发送到除本端口以外的所有端口
D.
丢弃该帧
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反馈参考答案：
举一反三
【简答题】colonel
【简答题】Colonel
【判断题】Charlie has a fondness for the colonel the first time he meets with the colonel.
A.
正确
B.
错误
【判断题】The colonel has an old-fashioned regard for women, mixed with yearning and fascination.
A.
正确
B.
错误
【单选题】The writer realized afterwards that
A.
Colonel Maude would deliberately have prevented him from rising in his profession
B.
Colonel Maude was too cautious to give a young writer a chance to distinguish himself
C.
he could not have gone on working for the newspaper it Colonel Maude had not taken over from Anderson
D.
chief sub-editors should be kind, like Colonel Maude
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