— Have all the students known our class will visit the zoo next week?

— Yes, every student             about it. [ ]

A. has told

B. is told

C. has been told

D. have been told

下列各项，治疗“疮疡溃后，久不愈合”的最佳方剂是（）

A.当归补血汤

B.仙方活命饮

C.麻黄汤

D.四物汤

E.四君子汤