求讨论，一道阅读题，看不懂。

xywustUID：3462520

As of the late 1980’s, neither theorists nor large-scale computer climate models could accurately predict whether cloud systems would help or hurt a warming globe. Some studies suggested that a four percent increase in stratocumulus clouds over the ocean could compensate for a doubling in atmospheric carbon dioxide, preventing a potentially disastrous planetwide temperature increase. On the other hand, an increase in cirrus clouds could increase global warming. That clouds represented the weakest element in climate models was illustrated by a study of fourteen such models. Comparing climate forecasts for a world with double the current amount of carbon dioxide, researchers found that the models agreed quite well if clouds were not included. But when clouds were incorporated, a wide range of forecasts was produced.With such discrepancies plaguing the models, scientists could not easily predict how quickly the world’s climate would change, nor could they tell which regions would face dustier droughts or deadlier monsoons.

题目是
15.2. It can be inferred that one reason the fourteen models described in the passage failed to agree was that

　　(A) they failed to incorporate the most up-to-date information about the effect of clouds on climate

　　(B) they were based on faulty information about factors other than clouds that affect climate

　　(C) they were based on different assumptions about the overall effects of clouds on climate

　　(D) their originators disagreed about the kinds of forecasts the models should provide

　　(E) their originators disagreed about the factors other than clouds that should be included in the models
答案是C 选项。     求各位大神帮忙解答下吧~

xywustUID：3462520

没人帮忙回答，自己顶下。。。

vngogherUID：3391684

这题是 915的真题，确实很坑，我个人找不出文中的具体对应，只能用排除法选C

xywustUID：3462520

vngogher 发表于 2013-10-8 11:20
这题是 915的真题，确实很坑，我个人找不出文中的具体对应，只能用排除法选C

这是 PP2的真题。好吧，竟然PP2上的题还出现在了考试中。
我10.13号考试！！！！！！！！！！~~

vngogherUID：3391684

xywust 发表于 2013-10-8 13:47
这是 PP2的真题。好吧，竟然PP2上的题还出现在了考试中。
我10.13号考试！！！！！！！！！！~~

。。。具体PP2的哪个部分？怎么我做PP2的时候没做到，是进了Medium以后才有的题？

心事付瑶琴UID：2727285

很明显，定位在：“ researchers found that the models agreed quite well if clouds were not included. But when clouds were incorporated, a wide range of forecasts was produced.”
是不是include云朵，就是不同的假设啊

PS：这道题就是我在考场上做到的之一

vngogherUID：3391684

心事付瑶琴 发表于 2013-10-8 14:09
很明显，定位在：“ researchers found that the models agreed quite well if clouds were not included.  ...

但是选项C是说different assumptions about the overall effects of clouds on climate啊，假设不是是否考虑云啊

心事付瑶琴UID：2727285

vngogher 发表于 2013-10-8 14:22
但是选项C是说different assumptions about the overall effects of clouds on climate啊，假设不是是否考 ...

没有问题。我们做模型的时候，加入云与否取决于什么？取决于云对于系统的影响是不是显著。这就是关于overall effects的假设

xywustUID：3462520

vngogher 发表于 2013-10-8 14:06
。。。具体PP2的哪个部分？怎么我做PP2的时候没做到，是进了Medium以后才有的题？

好吧，我弄错了~~不好意思，这是机经上的题。
请问下，你当时做这个题是出现了3个V吧？~
那这个就是加试了。 = =

xywustUID：3462520

心事付瑶琴 发表于 2013-10-8 14:09
很明显，定位在：“ researchers found that the models agreed quite well if clouds were not included.  ...

我就不知道哪里来的 那个 they were based on different assumptions ~ ~
斑竹，请问下你当时考试的时候碰到了3个V 吧？！
这个是加试中的！

心事付瑶琴UID：2727285

xywust 发表于 2013-10-8 14:35
我就不知道哪里来的 那个 they were based on different assumptions ~ ~
斑竹，请问下你当时考试的时候 ...

我是3Q所以很感恩（thank u），所以这个不是加试中的。。。话说你也不能判断哪个section是加试吧

xywustUID：3462520

心事付瑶琴 发表于 2013-10-8 14:56
我是3Q所以很感恩（thank u），所以这个不是加试中的。。。话说你也不能判断哪个section是加试吧

我以为网上的机经就是都是加试里面的。
那如果考试的时候碰到了原题，
那要狂喜的 。 = =

xywustUID：3462520

心事付瑶琴 发表于 2013-10-8 14:56
我是3Q所以很感恩（thank u），所以这个不是加试中的。。。话说你也不能判断哪个section是加试吧

3Q， 那这个题目就是原题了~
楼主人品真好！！！ = =

心事付瑶琴UID：2727285

xywust 发表于 2013-10-8 15:28
3Q， 那这个题目就是原题了~
楼主人品真好！！！ = =

哈哈，无所谓了，楼主复习很潦草，基本上没看什么真题，所以我完全不知道这个是考过的

xywustUID：3462520

心事付瑶琴 发表于 2013-10-8 15:30
哈哈，无所谓了，楼主复习很潦草，基本上没看什么真题，所以我完全不知道这个是考过的

我是楼主，您是版主:loveliness:
我真题还是看了。没看NO题，就把36给做了几遍。
= =