我国在提升线路基础设施技术水平时。，坚持（）。
A.标本分治
B.淡化安全管理
C.安全第一
D.预防为主
E.综合治理
参考答案：C, D, E
There are many passengers hit by cars and killed ________ because of the drivers' overdrinking,
so drivers' drinking is strictly limited now.[ ]
A. on the spot
B. in the spot
C. under the spot
D. on a spot
“桃李不言，下自成蹊”，这句话所体现的德育方法是( )
A．说理教育B．榜样示范C．实际锻炼D．品德评价
