某公司拟建一配送中心负责6个超市进行商品配送,各超市的具体位置与每天运输量如下表 所示,请利用重心法确定配送中心位置。(取整数) 各超市坐标值及每天运量表 超市 超市地图坐标(x,y) 每天运量(吨) A (10,5) 3 B (3,8) 3 C (4,7) 2 D (15,10) 6 E (13,3) 5 F (1,12) 3
【简答题】Everywhere we look, there is colour. We see it in the sky and in the sea. There are colours in all plants and animals. Colour makes our homes and schools pretty. We see it in pictures and in books. We...