He runs       fast        nobody can catch up with him.

A．too; to

B．so; that

C．such; that

D．enough; to

防止漫溢险情的常用子堤有（）、土袋子堤、防水布土子堤等。

A.堆石子堤

B.砌石子堤

C.土子堤

D.混凝土子堤