不好意思啦还有一道麻烦各位!XDF补充教材上的,大全里没有!
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 in1990 than in 1910.
If true above,then it is also possible that in Patton City
A the number of days with heavy rainfall was lower in1990 and in 1910
B the number of days with some rainfall,but no more than two inches, was the same in 1990 as in 1910
C the number of days with some rainfall, but nore thatn two inches, was higher in 1990 than in 1910
D the total number of inches of rain that fell on days with moderate rainfall in 1990 was more thanb twice what it had been in 1910
E the average amount of rainfall per month was lower in 1990 than in 1910
答案是:A
难道是规律推导的年下雨天少吗?
那TOTAL RAINFALL还比1910年高,我倒觉得D好像对.请NN指点! |