A. be far away from urban-crowdedness B. prevent whatever tourists to visit C. be regarded as a place where nature is protected D. provide buildings for human activities 参考答案:C 答案解析:[解析] 观点态度题。本题问“Dr.Baum认为真正的自然保护区应______,” [A](应远离城市拥挤);[B](能够向旅游者提供特殊的区域);[C](应该被看作是自然受到保护的地方),文章第三段