在重大节假日对于不属于免费车辆故意通行节日免费车道的行为可以对其进行路网最远里程补收通行费。
参考答案:对
— You smoke heavily, so I think it's hard for you to give up smoking.
— _____, I've made it. [ ]
A. Never mind
B. Take your time
C. That's all right
D. Believe it or not
在单轴应力状态下,垂直于б1的截面上其直应力为(),切应力为()。