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【简答题】
如果有一个运行802.1D生成树协议的局域网,那么在这个网络中的交换机会从根交换机收到哪些参数信息? A. Maxage. B. Forward delay. C. Root Cost. D. A, B, and C.
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【简答题】Tell the sense relation between a and b in each pair: 1) a. John’s car is secondhand. b. John has a car. 2) a. Mary helped Jane. b. Jane was helped by Mary.
【简答题】Mary has helped John. John ___________________ Mary.
【简答题】Mary has helped John.