Peter isn’t           , so I won’t recommend him       the new chairperson.

A．enough imaginative, for

B．imaginative enough, for

C．enough imaginative, as

D．imaginative enough, as

稳定循环水的方法有：采用软化水和（）处理。

A、投加缓蚀剂

B、投加阻垢剂

C、投加稳定剂

D、投加杀菌剂