中国的四大发明不包括
A.地动仪
B.造纸术
C.活字印刷术
D.指南针
参考答案:A
The ________ on driving after drinking alcohol is being carried out all over the country, which is helpful to reduce traffic accidents.
A.withdrawal
B.prejudice
C.aim
D.ban
运用动态规划的方法可以求解车辆配载问题。