—Volunteering is becoming increasingly popular in China.

—Yeah, people are now ____that helping others is helping themselves.

A．held

B．known

C．ashamed

D．aware

韶山8型电力机车电机悬挂方式是（）。

A.轴悬式刚性半悬挂

B.轴悬式弹性悬挂

C.轴悬式半悬挂

D.架悬式全悬挂