题目

阅读理解Some children don't liketheir schoolbags. A schoolbag makes them think of books and homework. Myschoolbag is different. I love it because it holds (装着) everything I need.I love books and myschoolbag keeps them with me. I don't mean (意指) only schoolbags. I meanmy reading books, too. Now I am reading PeterRabbit. After that, I will read HarryPotter.My schoolbag also holds mylunch box. Dad always puts a good lunch in my schoolbag. Sometimes he puts anote in it. That way, I feel happy all the afternoon.Sometimes my schoolbag isvery heavy, but I don't mind (介意). It has every公共汽车从车站匀加速起动后，司机发现尚有乘客未上车，急忙刹车（可看作匀减速直线运动）直到停止，汽车从开始起动到又停止整个过程历时5s，车共前进的距离为10m，由此可知汽车在此过程中的最大速度为__________m/s．