体育课上，甲、乙、丙三位同学进行百米赛跑，他们的成绩如（图

体育课上，甲、乙、丙三位同学进行百米赛跑，他们的成绩如（图）表所示，则获得第一名的是同学，比较方法是。

参赛者	甲	乙	丙
成绩(s)	14.2	13.7	13.9

答案

乙相同的路程比时间，乙用的时间更少

解析:略

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体育课上，甲、乙、丙三位同学进行百米赛跑，他们的成绩如（图

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