多项选择题 钢筋的加工一般包括（）。

单项选择题 听力原文：W: What do you think of the apple pie? I made it myself.M: My mother cannot match you.What does the man mean?A．His mother can't make apple pies.B．His mother likes the pie very much.C．This pie can't match his mother's.D．This apple pie tastes very good.

多项选择题 对于高强混凝土的叙述，错误的是（）。