![Oneofmyfavoritethingstodoishikinginmountains．Becauseno...]( "Oneofmyfavoritethingstodoishikinginmountains．Becauseno...")
- 问题详情： Oneofmyfavoritethingstodoishikinginmountains．Becausenobodylikestheideaofgettinglost，Ialwayspreparebeforeeverytrip．Butwhat’sthebestnavigationtool，aGlobalPositioningSys-tem(GPS)oragoodoldmapandcompass? FiveofmyfriendsandIhikedthroughthemountain...
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