—Three _____ injured students died in a hospital ineast China's Jiangsu Province last year.  

—Sorry  to hear  that. But our government ______ much about the school bus safety management.[ ]

A. serious; did          

B. bad; did

C. seriously; has done    

D. badly; was done

电容器的无功输出功率与电容器的电容（）。

A.成反比

B.成正比

C.成比例

D.不成比例