高炉炉墙结厚或结瘤严重时,常采用()、()、()及复方洗炉剂进行洗炉。
参考答案:均热炉渣;锰矿;萤石
—Could you tell me. ?
—Yes, it will start at nine.
A.when will the meeting begin
B.when the meeting will begin
C.where the meeting begins
D.where does the meeting begin
Ping命令是发送一个数据包到特定目标的应用程序,用来测试网络的连通性及数据包丢失