如图,牧童家在B处,A、B两处相距河岸的距离AC、BD分别为500m和300m,且C、D两处的距离为600m,天黑牧童从A处将牛牵到河边去饮水,在赶回家,那么牧童最少要走
A.800m B.1000m C.1200m D.1500m
如图,牧童家在B处,A、B两处相距河岸的距离AC、BD分别为500m和300m,且C、D两处的距离为600m,天黑牧童从A处将牛牵到河边去饮水,在赶回家,那么牧童最少要走
A.800m B.1000m C.1200m D.1500m