How could you ______ such a fantastic job when you have been out of work for months.

A．turn off

B．turn in

C．turn down

D．turn to

勇于献身的要点是：忠于职守，业精技强，( )。

A．机智勇敢，不怕牺牲

B．服从领导，听从命令

C．爱憎分明，除害安良

D．顾全大局，不怕牺牲