Whether early in ________ morning or late at ________ night, he may be in his office. [ ]

A. the; the  

B. the; /

C. /; the  

D. /; /

开工协调会需协商确定的事宜包括.（）

A.工程安装周期

B.制定工程进度计划

C.确定配合事宜

D.签订协议书