Many people are not________the danger of their children's bad habits, which     lead to failing to make their dreams come true.

A．well aware to

B．very aware of

C．aware that

D．well aware of

工程专题研究咨询的具体划分内容不包括( )。

A．各国独立咨询专题研究

B．微观专题研究

C．宏观专题研究

D．理论和方法研究