There are   __    in the reading room, but many of those books aren’t     __   to read．      [ ]

A. enough books，enough easy      

B. enough books，easy enough      

C. book enough，easy enough      

D. book enough，enough easy

包含了除税金之外所有费用的项目有（）。

A.分部分项综合单价

B.计日工

C.专业工程暂估价

D.暂列金额

E.税前项目费