GWD-6-21正确选项如何理解

lawyer_1

Do you mean if E is wrong, the evaluation of the argument is that the argument can hold because one of the premises is true. And if E is correct, the evaluation of the argument is that the argument can not hold because one of the premises is wrong. This is the way to evaluate the argument.

lawyer_1

Sorry, I still can not persuade myself to accept your opinion. If the conclusion is generalized from the the farmers who tried the modified cotton, like the example you give, sure questioning the representativeness is a good way to evaluate the argument. However, I think the author mentions the farmers who tried modified cotton only for showing the information concerned. And the reason relating the farmers' representativeness can not  harm the report. Moreover, I am still questioning whether it is reasonable to draw the farmers' representative of most farmers just based on the word "exceptionally" which may only means "very".

nanalin

以下是引用青鸟在2004-7-9 15:46:00的发言：

这个明明不是gwd6阿

是啊,这帖问题不是GWD6-21

GWD6-21是这题:http://forum.chasedream.com/dispbbs.asp?BoardID=24&ID=62572

我搜寻了GWD 1-13, 就是找不到这题

流沙

B不是正确答案，对于other crops的含义，在gmat中基本上不需要考虑它有额外的意思，譬如包括改良的corn。

可是e我觉得也有问题。但就e而言，解释很完美。但是文中明明提到了改良前后的种子耗费农药的费用是差不多的，如果这些farmer以前在使用改良之前的种子耗费的农药量很多的话，现在应该也一样。

所以我支持选d。文中说sligthly lower，完全有理由相信在量比较大的时候经济效应就出现了。

cranberry

我支持e。理由是文中所作的比较是把采用新种子的农民和其他未采用新种子的农民比，而答案e所说的也是这些采用新种子的农民以前使用大量的农药，如果对这个说法成立，则我们可以推出虽然这个新种子不能使实验对比的那些农民省多少钱，但依然可以使这些采用新种子的农民少花一些，因而weaken了结论，反之，则为比较提供了一个他因的排出，是支持。

cloudwind

這題不是GWD6-21 到底是哪一題啊?

jinni

这道题目到目前为止已经完全晕了。

比较倾向于B

doughnut

i support d. when we test something, we want the sample to be as large as possible, if the sample is not large enough, the result could be questionable.

wargs

E 有问题

wargs

不是GWD的，是天山3－3