____ it's late at night, ____ my father is still working. [ ]

A. Though  but

B. Because  so

C. Because  /

D. Though  /

有关人员接受布置进路命令，或接受调车作业计划（）。

A、需要进行复诵

B、不必进行复诵

C、复诵或不复诵均可