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GWD29-35,请热心人帮忙。

Q35:

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
   Answer:


答案是A,我觉得A如果改成more才对吧,因为下雨和中雨天数少了,单全年雨量增加,只有大雨天数多参能解释呀。不是很明白,还请热心人看过来。

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解释一下吧:

 

题目的意思是 在P这个地方,大雨(2以上) 中雨(1 2 之间) 小雨(0 1 之间)无雨四个标准, 90年 小雨和中雨的日子都比10年少,但是总雨量高20% (这个数字其实没用) 问推断

 

A 大雨天90年比10年少 的确可能... 因为上述论述志关于下雨的时间和下雨的量没有直接关系,假设 90年 10天中雨(1.9) 10天小雨(0.9) 10年11天中雨(1.1) 11天小雨(0.1) 1天大雨(2.1)那么 90年的总雨量:19+9=28 而10年总雨量:12.1+1.1+2.1=15.3 的确满足题目要求。

B 有雨天但雨量小于2的在90和10中一样,这个没戏,因为有雨但是小于2 就是说小雨和中雨的日子,题目说了 90比10少

C 有雨天但雨量小于2的在90比10中多,这个也没戏,因为有雨但是小于2 就是说小雨和中雨的日子,题目说了 90比10少 

D 中雨中的总雨量90比10的两倍多,这个也没戏,假设90年a天中雨 总雨量肯定小雨 2a 假设10年b天中雨 2倍的总雨量肯定大于 2b 但题目又说a < b 所以2a>2b是不可能的

E 90年的平均月降雨量比10年少,这个也没戏,平均月降雨量的比较跟总量比较一样,题目说了90是10的120% 所以比它少是不能得 

准备3年内学会4种语言

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这个题目挺绕的,我第一眼看的时候因为看掉了D那个twice所以选了D赫赫

准备3年内学会4种语言

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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.


题中说If the statements above are true。则In 1990, there were fewer days

with light rainfall than in 1910 是同样适用于P City.

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Your explaination is confusing, could you please be more specific?

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我也觉得A不对,应该改成more才能statement above are ture.

我个人选了D,虽然下中雨的天数1990 fewer than 1910,但是总下雨量1990是1910的

两倍多。可以理解成虽然1910下中雨的天数比较多,但每天下的时间比较短,或者比

较偏向1 inch,而1990虽然下的天数少,但每天下的时间长,雨量比较大,所以1990

全年雨量更大。

前面有人说C,但我觉得C和文中信息冲突,不对。


请其他人继续补充。

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难道我的解释不对么?

 

好奇中

准备3年内学会4种语言

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蒙着答案想了半天, 最后我也选了a.  我的想法是: heavy rainfall 是没有上限的。 你自己仔细算算b,c,d,e 都不行,只有a 才有可能

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