下肢静脉曲张能否手术取决于（）

A.大隐静脉瓣功能

B.小隐静脉瓣功能

C.深静脉回流通畅情况

D.浅静脉曲张情况

E.交通支瓣膜情况

There are _____ rules in our class.              [ ]

A. many too                    

B. too much              

C. much too                  

D. too many