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【简答题】
某主机的IP地址为202.102.99.18,子网掩码为255.255.255.240,该主机的网络地址为多少,主机地址为多少?
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【判断题】Jack Ma chose "Jack" as his English name because he thought it was a good name for people to remember.
A.
正确
B.
错误
【简答题】It was a beautiful spring morning, and the sun was warm but not too hot, so Mr Green was surprised when he saw an old gentleman at the bus stop with a big, strong, black umbrella (伞) in his hand. Mr G...
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