Doing morning exercise is of great ____________ to your health & consequently you’d better keep on it.

A．benefit

B．beneficial

C．benefition

D．useful

卵巢非赘生性囊肿包括（）

A.黄体囊肿

B.黄素囊肿

C.子宫内膜异位囊肿

D.皮样囊肿

E.浆液性囊腺瘤