— Have you seen the CCTV news on TV?

 — Yes,           children had a good festival on the           Children's Day. [ ]

A. millions of; sixty

B. ten million; sixty

C. millions of; sixtieth

D. ten millions; sixtieth

设计地下室外墙时选用的土压力是( )。

A．主动土压力
B．静止土压力
C．被动土压力
D．平均土压力