已知有6个村子，相互之间道路的距离如下图所示。现拟合建一所小学。已知甲村有小学生50人，乙村40人，丙村60人，丁村20人，戊村70人，巳村90人。从甲村到巳村的最短路程是（ ）；小学应建在（ ）村，使全体学生上学所走的总路程最短。
问题1选项
A.10
B.11
C.12
D.14
问题2选项
A.甲
B.丙
C.丁
D.巳
正确答案及解析
正确答案
解析
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