折线统计图,某市中小学生参观科技展人数统计图,0,1,2,3,4,5,6,7,8,9,10,1998,1999,2000,2001,11,2002,2003,人数/万人,年份,某市中小学生参观科技展人数统计图,0,1,2,3,4,5,6,7,8,9,10,1998,1999,2000,2001,11,2002,2003,人数/万人,年份,3,4,6,8,8,10,某市中小学生参观科技展人数统计图,0,1,2,3,4,5,6,7,8,9,10,1998,1999,2000,2001,11,2002,2003,人数/万人,年份,两种统计图的特点和作用,2090,2162,2210,2253,2366,2476,2622,折线统计图,复习课,23,25,28,29,26,24,23,温度/ ,时间,1991,1998,下降,
