4月6日狗狗热贴出炉

qqhongyun

请问楼主：食物链毒素问题在哪可以找到？
另外可否确认是否是这篇？
Food Toxins: Toxins in Our Food ChainHuman beings are at the top of the foodchain, thus we bioaccumulate the collective environmental toxins that go intothe growth and processing of our food. Every step between you and your food isa pathway for toxins to be added to your dinner plate.

Most of the crops in the United States
are grown with the aid of chemical fertilizers, pesticides, herbicides andfungicides, and some of these are potentially harmful to the environment andpeople. The Environmental Protection Agency estimates that 30% of insecticides,60% of herbicides, and 90% of fungicides are carcinogenic. Evidence suggestthat that these agrochemicals are present in our food supply, and even very lowlevels of these chemicals may be causing problems for humans, especiallychildren.
Pigs, chickens, dairy cows and fish arecrowded into factory farming to maximize their production, resulting inmultiple hormones and antibiotics just to keep the animals alive. Bovine GrowthHormone (BHG), used in dairy cows to increase milk-production, is a pro-tumorhormone, leading to increased risk of cancerous growths. Antibiotics are also acommon additive to livestock, and farmers use a whopping 70% of the antibioticsproduced every year in the United  States
. When we eat conventionally grownfood animals, we're ingesting all of these potentially harmful additives.
The more hands (or machines) that your foodpasses through before it gets to your plate, the more likely it is that toxicchemicals have been added. Food processing destroys many of its vitalnutrients. Freezing, canning, irradiation, pasteurization, and sterilizationcan all decrease food quality. Irradiation can change the chemical structure offood and also produce toxic byproducts. Food additives, food colorings, flavorenhancers (such as MSG), preservatives, artificial flavorings, and artificialsweeteners are used frequently, even though their safety may be in question.

realwuxiaoqi

阅读好像不是这篇，是那篇讲到 水溶性毒素比较不容易 传导，脂溶性毒素比较容易传导  其中有提到北极熊的

补充一道逻辑，讲5%的不是罪犯的人用XX方式 写字，有95%的罪犯用XX方式 写字，所以只要抓到用XX方式 写字的一般是罪犯
答案应该是缺少信息，是罪犯的人的概率

nty2013

lz,帮忙确认下考古吧，谢谢，确认请给我留言
19、国内投资和国外投资的
V1
第一段一上来给了一个现象，但是我给忘了。。。
第二段是说很多研究表明，很多发展中国家，如果foreign investment is larger than domestic investment，这个国家的经济发展会比那些 foreign investment is smallerr than domestic investment的国家慢。
第三段解释说为什么，因为发展中国家的人虽然得到了外国投资，但是因为不发达，人民适应债务，或者是还清债务的能力不强。所以给再多投资也不能吸收。如果发展中国家发达了，外国投资就会有帮助了。
V2
investment flow between richer countries and poorer countries. 说传统观点认为是从富国向穷国流动的，但是其实是uphill的，因为穷国的savings比较多，所以直接或间接的被用于了海外投资。而且穷国的financial system都不完善，所以无法有效的absorb the foreign investment. 因此随着financial system 的健全，穷国经济增长速度也会加快。这篇记得也挺长的。
V3
1. 穷国富国financial system的. (3段, 结构很清晰, 话也不多)
I 主旨貌似是, theory说 穷国应该怎么怎么, 但是实际情况不是的,
II 具体情况是怎么怎么的
III 说了造成这样的原因, 归跟芥蒂是他们没有个好的金融体系
V4（39）
4.第四篇阅读是说不同经济实体中investment的流向的.
开头说了,根据经济学理论,资本应该从发达国家流向发展中国家.因为发展中国家没有足够的capital,所以他们会为capital提供更高的回报.但根据事实的观察,事情并不是这样的.贫穷国家的钱都流到发达国家去了.然后讲述了人民的储蓄和投资之间啥啥啥...忘了
第二段说,又有观察发现,那些吸引外资投资的金额比本国投向外国的金额多的国家,发展得比较的慢.貌似也是和什么什么理论相悖的.好像他意思是说应该依赖本国自己内部的投资.
第三段就解释说(中间有一段记忆空白)那些原本很穷,但是发展很快,但是金融体系又不发达的国家,当人们有了钱时,就不倾向于通过本国的金融体系借给本国的公司用来发展,而是直接或者间接的投资于国外.blabla...这个问题会因为金融体系的逐渐健全而被解决的.

题目1是主旨题,问这文章讲了啥,我选的是对于一些和理论相悖的现象进行的分析.
题目2不太记得,反正跟文章最后一句金融体系什么的相关.
题目3完全不记得...
V5（700）
比较简单。但是比较关系要搞清楚，有两道题考比较。
有一题是，如果是richer country的居民，更有可能碰到哪些情况。
选项大致有，存更多钱；会投资更多到别的国家；都是错的选项，不好意思，正确的记不起来了。

nty2013

lz,还有这篇背景知识，有意义的话就给我留言，谢谢
http://forum.chasedream.com/GMAT_Math/thread-451443-1-1.html#last