BGP邻居未建立连接且未尝试发起建立连接的状态是（）
A.Established
B.Idle
C.Active
D.OpenConfirm
参考答案：B
Read and fill in the blanks. 用所给单词的适当形式填空。
1. Yesterday I (walk) to the park.
2. Bob's team is ( play) basketball now.
3. Tomorrow she (go) to buy a new dress.
4. —What did you do? —I (teach) Kim to play the piano.
5. —Who won? —The orange team (win).
升国旗时的礼节？
