促使体育运动中的一切变化实现的是（）
A、社会流动
B、社会控制
C、社会分层
D、社会变迁
参考答案：D
When different cultures, we often pay attention only to the differerices without noticing the many
similarities. [ ]
A. compared
B. being compared
C. comparing
D. having compared
《中国药典》(2000年版)二部规定：糖衣片全部崩解的时限为
A．10min
B．15min
C．25min
D．30min
E．60min
