The president spoke at the business meeting for nearly an hour without ____ his notes.[ ]

A. referring    

B. consulting

C. seeing                            

D. watching

下列各项中，属于施工企业成本核算基础工作的是 ______。

A．加强费用开支的审核

B．严格遵守国家规定的成本开支范围

C．建立健全原始记录制度

D．划清各种费用界线