请教LSAT10-1-4

ambguy

LSAT10-1-4
4. Data form satellite photographs of the tropical rain forest in Melonia show that last year the deforestation rate of this environmentally sensitive zone was significantly lower than in previous years. The Melonian government, which spent millions of dollars last year to enforce laws against burning and cutting of the forest, is claiming that the satellite data indicate that its increased efforts to halt the destruction are proving effective.
Which one of the following, if true, most seriously undermines the government’s claim?

(A) Landowner opposition to the government’s antideforestation efforts grew more violent last year in response to the increased enforcement.
(B) Rainfall during the usually dry 6-month annual burning season was abnormally heavy last year.
(C) Government agents had to issue fines totaling over 59 million to 3,500violators of burning-and-cutting regulations.
(D) The inaccessibility of much of the rain forest has made it impossible to confirm the satellite data by direct observation from the field.
(E) Much of the money that was designated last year for forest preservation has been spent on research and not on enforcement.

answer is B
I choose D,and I think B,D,E all underwine the claim,why B is the best?
thx

joywzy

我试一下：

此题的assumptionata form satellite photographs of the tropical rain forest in Melonia is accurate.
But B: abnormal heavy rainfall is the denial of the accurateness. So B is weakening.

D,E is irrelavant to denial the asssumption.

joywzy

Besides, i used to make the same mistakes as you.

There are evidence and conclusion in the argument. And assumption is the bridge. Weakening is the denial of assumption, strengthening is the emphasis of the assumption, evalution is to restate the cause . So in the argument , the assumption is the key.

ambguy

thanks
but i don't think B weakens the assumption as you say.
do you mean that the satellite offers the data about climate too ? i don't think the climate is relavant to the accuracy of satellite, is there any evidence to support this relavance in the argument i ignore ?

if you do not agree with me, please tell me why.

[此贴子已经被作者于2003-2-6 14:01:30编辑过]