- 問題詳情:Withmoreandmorecarsontheroad,thetrafficjamwillhappen.Howdoweseeitandhowcanwesolvetheproblem?Weknowthatthetrafficjamhappensinmanyplaces,especiallyinbigcities.Whatarereasonsfortheproblem?Ononehand,somepeoplethinkthattheyshouldhaveacarwhentheyha...
- 29592