原文：Countries all over the world are actively promoting their wilderness regions to highspending tourists The attraction of these regions is obvious by definition wilderness tourism requires litter or

谢谢好友的邀请。现在有一段调侃的话，“手机干掉了电视机，干掉了照像机，干掉了收音机……”也的确如此。随着网络信息的高速发展和智能手机的高度普及，人们一机在手，生活无忧。手机完全取代手机，那是不可能的。 雅思阅读替

原文：While this includes complex kingdoms as in Africa and ancient empires such as those of the Americas the primary focus of attention in the twentieth century has been on smallscale societies [雅思