The front windshield of a new car needs to be affixed with the traffic insurance sign, the annual inspection sign and the annual ticket sign of Luqiao. As for environmental signs, some cities such as Beijing and Shanghai don't need environmental signs, but Jilin and Changchun don't need environmental signs! Moreover, in some cities, especially in some secondary cities, annual tickets for roads and bridges need not be paid, and new cars should at least be posted. ...