公路交通事故处置程序与措施为()。

A、接警出动、侦察检测、设立警戒、救生排险、现场急救、清理移交

B、接警出动、个人防护、现场询情、侦察检测、设立警戒、疏散人员、排除险情、洗消处理和清理移交。

C、接警出动、现场侦检、设立警戒、开展人员救助、排除险情搞好保障、清理移交

D、接警出动、个人防护、现场询情、侦察检测、设立警戒、疏散救生、排除险情、现场急救、搞好保障、清理移交

______________ twice a year, whether it is a car, a bus or a truck, is the rule that every driver must obey in this city.

A．Examining

B．Examined

C．Having been examined

D．Being examined