标题: 发一贴，求一解～conclusion题 [打印本页] 作者: sicilia小山 时间: 2012-11-25 12:40 标题: 发一贴，求一解～conclusion题 In Patton City, days are categorized as having heavy rainfall (more than two inches), moderate rainfall (more than one inch, but no more than two inches), light rainfall (at least a trace, but no more than one inch), or no rainfall.In 1990, there were fewer days with light rainfall than in 1910 and fewer with moderate rainfall, yet total rainfall for the year was 20 percent higher in 1990 than in 1910.
If the statements above are true, then it is also possible that in Patton City
the number of days with heavy rainfall was lower in 1990 than in 1910
the number of days with some rainfall, but no more than two inches, was the same in 1990 as in 1910
the number of days with some rainfall, but no more than two inches, was higher in 1990 than in 1910
the total number of inches of rain that fell on days with moderate rainfall in 1990 was more than twice what it had been in 1910
the average amount of rainfall per month was lower in 1990 than in 1910
作者: dorothyyy 时间: 2012-11-25 14:35
的确是A啊。 问题问的是 which is also possible。也就是说要选按照题干同样可以推出的选项。
先看BCDE：
B和C是同一类:the number of days with some rainfall, but no more than two inches, 这个描述指的是light+moderate两种。由于题干说了1990年这两种都比1910年少，所以BC都不对。 D:说1990的moderate雨量比1910多这同样是没道理的 E：1990年总量多，月平均是是不可能低于1910的。