The Great Wall of China, ______ was built by Chinese ancient people, is regarded as one of the

few wonders of the world.[ ]

A. which          

B. that            

C. who            

D. What

（）是编制成本计划的组织保障。

A、建立独立的监控部门

B、制度的建立、完善与落实

C、企业对项目的管控模式

D、企业管理层推行成本计划的决心并坚持落实