第17题: [单项选择]A scientist being interested in adding to our general knowledge about oxygen would probably call his approach ______. A. applied science B. environmental science C. pure science D. agricultural science 参考答案:C 答案解析:[解析] 推理判断题。根据原文第四段对科学的分类和对两类科学的定义可以判断答案选[C]。原文说 One,aimed at satisfying curiosity,is referred to as