(2013·东北三省四市一模)—Linda, you couldn't have chosen a much better present for me.

—________

A．Oh, it can't be helped.

B．I'm glad you like it so much.

C．That's all right.

D．It's nothing, isn't it?

设备安装工程定额是设备安装工程的( )的统称。

A．施工定额

B．企业定额

C．预算定额

D．概算指标

E．概算定额