如何Ping端口? ping命令是不能够测试端口的，ping只是测试网络联接状况以及信息包发送和接收状况。格式：ping IP地址或主机名 [-t] [-a] [-n count] [-l si...
1. Li Ping is learning to speak English. 2. It is raining now. 3. They are watching a footbal match on TV. 4. He is looking out of the window. ...
