We all know that,            , the situation will get worse.      [ ]

A. not if dealt carefully with      

B. if not carefully dealt with      

C. if dealt not carefully with      

D. not if carefully dealt with

将电力摆在能源战略的中心地位，客观上是由（）所决定的。

A.电力特性

B.资源禀赋

C.能源发展规律

D.能源分布规律