火法精炼锡采用( )方法除掉杂质。
A.溶折
B.熔折
C.解析
D.凝析
E.气析
参考答案:B,D
As to his criticism, I don’t mind it in the least, but______is how he does it that I can’t take.
A.which
B.that
C.this
D.it
同质分组