第4题: [单项选择]A spear or a robot has the quality of technology only when it______. A. is used both as a cultural and a physical object B. serves different purposes equally well C. is utilized by man D. can be of use to both man and animal 参考答案:C 答案解析:归纳事实题。问只有在什幺情况下矛和机器人才具有技术的特性。根据文章第二段开头两句可知答案为C。