[求助]XDF上的逻辑171题和267题

moon05

新东方上的两道逻辑题, 请NN帮忙指点一下, 不胜感谢!

171.For a trade embargo against a particular country to succeed, a high degree of both international accord and ability to prevent goods from entering or leaving that country must be sustained. A total blockade of Patria's ports is necessary to an embargo, but such an acton would be likely to cause international discord over the embargo.

The claims above, if ture, most strongly support which of the following conclusions?

B) As long as international opinion is unanimously against Patria, a trade enbargo is likely to succeed.

D) Any trade embargo against Patria would be likely to fail at some time.

这两个选项也是不知该怎么有关无关?

267. In Patton City,days are categorize 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 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.

A是正确答案, 但我不知怎么和原文有联系?

chelin_wu1220

267. In Patton City,days are categorize 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 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.

A是正确答案, 但我不知怎么和原文有联系?

原文说P城的雨分几种,大雨(heave),中雨(moderate),小雨(light)和没雨.1990年时,中雨的天数少了,但是年

降雨量增多了,问哪一个选项成立.

这是个数学题. 年降雨量=大雨+中雨+小雨, 题目里说中雨减少了, 很明显是其他种类的雨的天数增多了,A就是说大雨的天数增多了

chelin_wu1220

171.For a trade embargo against a particular country to succeed, a high degree of both international accord and ability to prevent goods from entering or leaving that country must be sustained. A total blockade of Patria's ports is necessary to an embargo, but such an acton would be likely to cause international discord over the embargo.

The claims above, if ture, most strongly support which of the following conclusions?

B) As long as international opinion is unanimously against Patria, a trade enbargo is likely to succeed.

D) Any trade embargo against Patria would be likely to fail at some time.

这两个选项也是不知该怎么有关无关?
是不是选D啊

judydongxueni

171B我想是错了吧把必要条件说成了充分条件，D如果没有更好的选择貌似可以

judydongxueni

In 1990, there were fewer days with moderate rainfall, yet total rainfall for the year was 20 percent higher in 1990 than in 1910.

A) the number of days with heavy rainfall was lower in 1990 than in 1910.
我怎么看了A好几遍都是：中雨少了总量多了，大雨却也少了。

是不是题目有问题啊？

chelin_wu1220 JJ怎么看？

winsx2008

我看了好几遍  a就是说1990 比1910 下雨的天数少了 应该是多才对呀。。。。。。

sherryly

以下是引用winsx2008在2005-5-7 21:43:00的发言：
我看了好几遍  a就是说1990 比1910 下雨的天数少了 应该是多才对呀。。。。。。

我也同意，是不是选项出错了？？