焊后热处理中，消除残余应力最通用的方法是( )。

A．高温回火
B．中温回火
C．正火处理
D．低温回火

Thank you ever so much for the book you gave me.（）

A.No thanks

B.I'm glad you like it

C.Yes, it is good

D.No, it's not so good