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在查阅有关植树问题资料时,很荣幸拜读了杨安林老师《对“平面植树问题的新见解”之见解》(《广东教育》综合版2004年10期)和李桂良老师《平面植树问题的新见解》(《广东教育》综合版2004年06期)两篇文章。李老师
When reviewing the information on tree planting problems, I was honored to have read Yang Insulin’s new opinion on the issue of “flat planting of trees” (“Guangdong Education” Comprehensive Edition 2004 10) and Li Guiliang’s teacher “ Insights ”(“ Guangdong Education ”Integrated Edition 2004-06) two articles. Teacher Li