The trees _____ in the storm have been moved off the road. [ ]

A. being blown down

B. blown down

C. blowing down

D to blow down

总监理工程师对项目监理机构内的每一个岗位都应订立明确的工作目标和岗位责任，使( )。

A．管理职能不重不漏

B．事事有人管

C．人人有专责

D．人员性格互补

E．人员能力互补