I rang and got ______ to him and he said he had got ______ the examination.

A．off, out　　

B．through, through

C．along, back　

D．away, to

公安机关在紧急处置重大灾害事故或者平息叛乱时，在不得已的情况下所采取的非常措施是( )。

A．戒严执行权
B．紧急排险权
C．紧急状态处置权
D．紧急优先权和紧急征用权