Only when he was refused by the interviewer ____ the importance of knowing English.

A．was he fully aware of

B．he was fully aware of

C．was fully he aware of

D．he fully was aware of

弹簧门的安装要点正确的是（）。

A、顶轴套板和回转轴套的轴孔中心线必须在同一垂线上，并与门扇地面垂直

B、将顶轴装于门框顶部，并适当留出门框与门扇顶部之间的缝隙，以保证门扇启闭灵活

C、安装底座时需注意使板面与地面（含装饰面层）保持在同一标高上

D、安装门扇应在混凝土混凝强度达到75%后

E、启闭调速可以通过不同方向拧“油泵调节螺钉”来调节