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数数[Counters]说明：Explore simple patterns, discuss ratio or simply count the coloured counters. Click on the work area (the white screen) and the preselected counter will appear. This can now be dragged or deleted depending on the option selected. [重来 下载 全屏显示 收藏 报告错误]   
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开始100网址站 股市数据网
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