As the life they were used to _____ changed by the terrible earthquake, the people in the earthquake-stricken area are doing all they can ______ their new life.

A．have now been, build

B．having now been, to build

C．has now been, to build

D．is now, build

目前大众动力系统网络的特征是（）

A.实时性

B.面向车身

C.安全性

D.低速

E.高速