GWD 19的一道逻辑题，大家帮看看为啥D不可能呢？

azuo1209

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
A.    the number of days with heavy rainfall was lower in 1990 than 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 no more than 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 than twice what it had been in 1910
E.    the average amount of rainfall per month was lower in 1990 than in 1910

boriswang520

我认为B. C .D 皆有可能。此题不严谨。

zhangyunkai5

答案是A?

azuo1209

没错答案是A，要是这么说的话，我觉得B,C,D 都行呢。
如果没有高人指点，我认为此题还是有争议，暂且跳过。

sorryself

此题太绕了，大概没几个人考试能答对

但B, C, D的确都是不可能的答案

B&C选项：”the number of days with some rainfall, but no more than two inches” = the number of days with moderate and light rainfall，既然前提都说了1990年比较少，那这两个选项都不可能成立

D选项：若1990年moderate rainfall天数较少，但总雨量又要比较多，拿个极端值来试试

1990年moderate rainfall下了364天，1910年下了365

1990平均每天moderate rainfall雨量趋近于2，1910年则趋近于1

则(364*2)/(365*1)无论如何不会>2

所以D选项也排除了

如此，如以前各位NN所说，只有A有可能发生



这道题我也想了很久啊….简直莫名其妙!!

zhangyunkai5

题目的大意是在说rainfall days的天数类型比较
所以DE首先排除 BC虽然提到的rainfall days但是句子的中心是inches，
只剩下A最符合题意了
这是我的思路
请指教