Such poets as Shakespeare _____ well-known, of whose works, however, some _____

difficult to understand.[ ]

A. are; are    

B. is; is    

C. are; is  

D. is; are

平片上，蝶鞍增大和／或破坏见下述情况（）。

A.垂体瘤、视交叉胶质瘤、颅咽管瘤

B.垂体瘤、颅咽管瘤

C.视交叉胶质瘤、蝶窦或后组筛瘤粘液囊肿或肿瘤

D.蝶窦或后组筛窦粘液囊肿或肿瘤

E.垂体瘤、视交叉胶质瘤、颅咽管瘤、蝶窦或后组筛窦粘液囊肿或肿瘤