随笔分类 -  英语阅读

摘要:Another common type of reasoning is the search for causes and results.另一个普遍的推理类型是因果的研究。 We want to know whether cigarettes really do cause lung cancer. 我们希望知道香烟是否确实引起肺癌, and what causes malnutrit... 阅读全文
posted @ 2008-09-12 13:24 子午 阅读(473) 评论(0) 推荐(0)