2018年7月16日
C - The area
摘要： Description Ignatius bought a land last week, but he didn't know the area of the land because the land is enclosed by a parabola and a straight line. 阅读全文
posted @ 2018-07-16 14:49 繁华中央 阅读(172) 评论(0) 推荐(0) 编辑