双渣法的优点有()。
A.提高脱硫效率
B.化渣快
C.减少喷溅
D.冶炼周期短
参考答案:A, C
Read and number.(给句子重新排序,组成一段短文)
( )She's my mother.
( )Thank you.
( )who is this girl?
( )Hello. Welcome to my horne.
( )Who's that woman?
( )And this is me.
封井应与()确定封井原则并形成相关文件。
A、业主方
B、总承包方
C、施工方
D、设计方
E、降水方