分段图2
来源:百度文库 编辑:神马文学网 时间:2024/07/05 16:24:05
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_2.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/1623/2180804_9.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/1623/2180804_16.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/1623/2180804_10.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/1623/2180804_11.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/1308/2156987_7.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/1623/2180804_3.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/1623/2180804_4.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_6.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/1623/2180804_8.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_7.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_10.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_8.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_9.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_11.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_4.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_5.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_19.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_12.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/1308/2156987_40.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/1308/2156987_38.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/1308/2156987_1.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/1308/2156987_31.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/1308/2156987_32.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/1308/2156987_36.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/1308/2156987_35.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_13.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/1308/2156987_33.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_14.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_15.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_16.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/1308/2156987_34.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_17.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_18.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_20.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_21.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_22.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_23.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_24.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_25.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_26.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_27.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_28.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_29.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_30.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_31.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_34.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/1623/2180804_6.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_32.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_33.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_35.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_36.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_37.jpg)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_56.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_57.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_58.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_60.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_61.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_62.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_63.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_65.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_64.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_66.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_67.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_68.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_69.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_70.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_71.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_72.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2077328_2.jpg)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_73.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_74.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_76.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_77.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_75.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_78.gif)
![](http://image5.360doc.cn/DownloadImg/2009/11/15/51604_9105293_1.jpg)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_79.gif)
![](http://image5.360doc.cn/DownloadImg/2009/11/15/51604_9105293_16.jpg)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_80.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_81.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_82.gif)
![](http://image5.360doc.cn/DownloadImg/2009/11/15/51604_9105293_2.jpg)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_83.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_84.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_85.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_86.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_3.jpg)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_87.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_88.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_89.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_2.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_3.gif)
![](http://homepage2.nifty.com/ColorfulLovers/img/star.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_4.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_5.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_2.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_3.gif)
![](http://homepage2.nifty.com/ColorfulLovers/img/star.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_4.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_5.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_2.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_3.gif)
![](http://homepage2.nifty.com/ColorfulLovers/img/star.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_4.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_5.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_2.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_3.gif)
![](http://homepage2.nifty.com/ColorfulLovers/img/star.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_4.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_5.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_2.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_3.gif)
![](http://homepage2.nifty.com/ColorfulLovers/img/star.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_4.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_5.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_2.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_3.gif)
![](http://homepage2.nifty.com/ColorfulLovers/img/star.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_4.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_5.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_2.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_3.gif)
![](http://homepage2.nifty.com/ColorfulLovers/img/star.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_4.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_5.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_6.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_8.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_9.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_10.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_11.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_12.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_13.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_14.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_15.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_16.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_17.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_18.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_19.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_20.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_21.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_22.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_23.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_24.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_25.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_26.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_28.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_29.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_30.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_31.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_32.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_33.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_34.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_35.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_36.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_37.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_38.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_39.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_40.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_41.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_42.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_43.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_44.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_45.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_46.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_47.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_48.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_49.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_50.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_71.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_72.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_73.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_74.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_75.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_76.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_77.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_78.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_79.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_80.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_51.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_52.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_53.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_54.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_55.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_56.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_57.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_58.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_59.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_60.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_61.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_62.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_63.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_64.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_65.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_66.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_67.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_68.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_69.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_70.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_81.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_82.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_83.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_84.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_85.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_86.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_87.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_88.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_89.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_90.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_91.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_92.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_93.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_94.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_95.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2277773_96.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_90.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_91.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_92.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_38.jpg)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_20.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_21.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_16.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_18.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_17.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_25.gif)
![](http://image6.360doc.cn/DownloadImg/2009/12/2716/2072664_93.gif)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_43.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_39.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_40.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_41.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_42.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_48.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_48.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_48.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_44.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_45.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_46.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_47.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_49.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_50.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_50.jpg)
![](http://image7.360doc.cn/DownloadImg/2010/01/2711/2236750_50.jpg)
![](http://image3.360doc.cn/DownloadImg/2009/1/17/83855_2350215_31.gif)
![](http://image7.360doc.cn/DownloadImg/2009/12/2716/2191340_8.jpg)
![](http://userimage1.360doc.cn/10/0130/31/328003_20100130316560823.jpg)
![](http://userimage1.360doc.cn/10/0207/51/328003_20100207517040645.jpg)
![](http://userimage1.360doc.cn/10/0125/70/328003_20100125705490305.jpg)
![](http://userimage1.360doc.cn/10/0131/13/328003_201001311312340067.jpg)
![](http://userimage1.360doc.cn/10/0127/17/328003_201001271740260733.jpg)
![](http://userimage1.360doc.cn/10/0203/20/328003_201002032028300435.jpg)
![](http://userimage1.360doc.cn/10/0421/20/328003_201004212042000753.jpg)
![](http://userimage1.360doc.cn/10/0202/18/328003_201002021850310802.jpg)
![](http://userimage1.360doc.cn/10/0423/14/328003_201004231404090326.jpg)
分段图2
分段图1
分段图 w
日本食品安全分段管理
最佳分段美容时间
心经白话分段解释
两岸分段统一指日可待
初中作文怎么分段?
申请美国研究生分段详解
申请美国研究生分段解
变色 KDJ分段线源码
分段起针法 - Qzone日志
专家建议:实物金条投资者有必要分段变现
<<金刚般若波罗蜜经>>分段注解
简易型操作法跟分段操作法
金刚般若波罗蜜经分段注解
金刚般若波罗蜜经分段注解
《六祖坛经》分段贯释
2008年五城区及高新区中考成绩分段统计表
金刚般若波罗蜜经分段贯释
四川省2008年普通高考10分段人数统计表(理)
实事求是,分段表述——林彪诞辰100周年
金刚般若波罗蜜经分段贯释
在Excel中用FreQuency函数提高效率,分段统计