我国的《公路沥青路面再生技术规范》建议水泥等活性填料一般不超过()
A.1%
B.1.5%
C.2%
D.2.5%
参考答案:B
My computer game is _____ the drawer and my books are _____ the sofa. [ ]
A. on; on
B. in; in
C. on; in
D. in; on
固定电话国内长途电话IP加拨,IP电话费资费标准为()。