If the launch (发射) in 2005 is successful, China will be the third country _____ its astronauts into space

after Russia and the US.[ ]

A. send            

B. sent          

C. sending            

D. to send

在下列历史事件中，导致王朝更替的是( )。

A．盘庚迁殷

B．牧野之战

C．周公东征

D．共和行政