— There are too many "problem children" in our school. Many teachers are anxious about it.

     It will be a big problem. 

— That's right. What do you think ______? [ ]

A. should we do with the problem

B. should we deal with the problem

C. we should do with the problem

D. we should deal with the problem

不正当竞争行为包括（）。

A.在商品上冒用认证标志

B.贬低竞争对手的商业信誉

C.违反合同约定擅自允许他人使用别人的商业秘密的行为

D.虚假宣传行为