小试一下,没搞好别怪我哦.... Two companies, G and R, each pay Salcor to provide health insurance for their employees. Because early treatment of high cholesterol can prevent strokes that would otherwise occur several years later,Salcor encourages G employees to have their cholesterol levels tested and to obtain early treatment for high cholesterol. R employees generally remain with R only for a few years,---原因 however. Therefore, Salcor lacks any financial incentive to provide similar encouragement to R empoyees.--结果 分析: Because 早治疗可以预防 , 所以鼓励G测试cholesterol并早治疗 , 但R的雇员在R工作时间只有几年 -----A 注意:这里并不是说R的前员工都跑了,现有员工都是这几年招的 Therefore 不鼓励R测试治疗--B---------与鼓励测试治疗相对,R公司和G公司的结果相反 结构为 A→B 削弱方法:同因异果 即A→反B 削弱的理由就是同因 weaken? A. Early treatment of high cholesterol does not eliminate the possibility of a stroke later in life--->反对前提,支持结论 B. People ofter obtain early treatment for high cholesterol on their own.----->样本大小? How many people? These people are not representative for the total population that the generlization is talking about. C. G hires a significant number of former employees of R ----> 说明G和R的员工工龄相同甚至更短,但G被鼓励测试治疗,A→反B D. R and G have appoximately the same number of employees.------>无关比较,和NUMBER木有关系 E. R employees are not, on average, significantly younger than G employees------->无关比较,和AGE木有关系 |