KR铁水脱硫的工艺特点是什么?
参考答案:
将搅拌器浸入铁水罐内旋转搅动铁水,使铁水产生漩涡,同时加入脱硫剂使其卷入铁水内部进行充分反应,从而达到铁水脱硫的目的。
There is much chance ____ Bill will recover from his injury in time for the race. [ ]
A. that
B. what
C. when
D. which
一位村干部与乡镇干部、其他村干部和村名等人建立的角色关系,叫()