张老师每天都要骑自行车上班,他骑行6000m大约需要20分钟路程与时间比是_百度作业帮
张老师每天都要骑自行车上班,他骑行6000m大约需要20分钟路程与时间比是
温柔你凉姐461
路程:时间=6000:20=300:1
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