A. resources are abundant B. there is too much for us to do C. there are only 24 waking hours in a day D. our means are limited, but our wants are unlimited 参考答案:D 答案解析:[解析]推理判断题。原文第一段首先说means的有限,接着说Because of scarcity,choices are necessary,必须做出选择的原因是资源有限,不能满足我们的需要,因此答