关于骨软骨瘤的叙述不正确的是（）

A.又称骨软骨性外生疣

B.多见于儿童

C.好发于四肢长骨的干骺附近，特别是股骨下端、胫骨上端及肱骨上端

D.生长缓慢，但症状多明显

E.X线摄片显示有正常骨组织的疣状肿物，界限清楚

I haven't read（）book, but I read half of it. At least I know something about the subject now

A.whole

B.the whole

C.all of

D.all