Oneofmyfavoritethingstodoishikinginmountains．Becauseno...
問題詳情： Oneofmyfavoritethingstodoishikinginmountains．Becausenobodylikestheideaofgettinglost，Ialwayspreparebeforeeverytrip．Butwhat’sthebestnavigationtool，aGlobalPositioningSys-tem(GPS)oragoodoldmapandco...