不同级别的爆破拆除工程有相应的设计施工难度，爆破拆除工程设计必须按级别经当地有关部门审核，做出安全评估和审查批准后方可实施。
参考答案：对
Though Andy has lived in Northern China for several years, he still doesn't agree _____ the food there. [ ]
A. to
B. with
C. on
D. in
下列属于数据库管理系统的是（）。
A、ccess
B、WinRAR
C、Dreamweaver
D、RealPlayer
