He runs       fast        nobody can catch up with him.

A．too; to

B．so; that

C．such; that

D．enough; to

万古霉素是上述哪一种感染的首选药（）

A.病毒性肺炎

B.产超广谱β内酰胺酶大肠杆菌所致肺炎

C.军团菌肺炎

D.金黄色葡萄球菌肺炎

E.真菌性肺炎