than in them . The win car reached ata speed of forty miles an hour . 【学贵有疑】【我的疑问】------ 我思考,我收获! 学习建议:结合以上学习,请你用 3-5 分钟的时间与同学自由质疑和答惑。_________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________