— I wonder if the work can be completed in a month.

— The work is progressing________schedule and should be completed within three weeks.   [ ]

A. in advance  

B. ahead of 

C. in sight  

D. in front of

下列各项，不属子宫脱垂的非手术治疗的是（）。

A.增强体质，加强营养

B.保持大便通畅

C.治疗慢性疾病

D.使用子宫托

E.脱垂子宫悬吊