A. Nuclear Energy and Public Safety B. Uranium Ore and Its Characteristic C. Scientific Approach to Dispose of Nuclear Wastes D. Nuclear Process and Its Wastes 参考答案:A 答案解析:本文主要论述了核能源所产生的放射性废料对人类的威胁,故[A]为正确答案。选择项[B]概括的范围太窄。文章中只提及了关于如何处理核废料的建议,故[C]不正确。选择项[D]概括的范围又太宽。