4.5 @北京 一战 很mediocre的成绩。。。放狗是正事

cappuccinolibr

今天下午场 Verbal做的时候感觉很糟。。没怎么记得题目。。不过遇到了前几天的一题阅读寂静就是那个检测 coffee aroma 的新方法 很多专业词汇啊。。。凭印象记得 先说了两种旧方法 然后说 有一种electronic nose 说这种nose和前两个方法的drawback 一样。。
然后才进入正题说新方法 新的方法是什么用 含有dye pigment 什么的一种什么。。。LZ实在记不得了  反正说了一段这种新方法的原理。。。然后说这种新方法的缺点是没办法确定coffee含的到底是哪种aroma。。。


再说作文吧
AA是说 有一家company 的 employees' motivation和ability（第二个准确词忘了 反正是这个意思）这两年一直下降 而且margin revenue 也一直下降 所以说明是员工能力影响了revenue  然后the Director of Manufacturing 就说要少招新员工 而且说 the human department 应该负担这个failure的责任。。
AI是 一道很变态的题。。。因为LZ没怎么准备作文 所以看到AI 有点懵了。。
说是 although people wish to live long lives, extending average human life span is a mistake. 而且会对自然造成很大burden. 所以不应该延长人类寿命。
大概就是这个意思。。。希望哪只大牛能探讨一下这题怎么写比较好。。。LZ觉得 需要先肯定extending human life 然后也要让步 承认burden 最后还要再转回来说 tech development 可以解决burden的问题。。。总之思维很混乱。。。


最后说说数学
大部分记不得了（所以LZ一直很佩服贡献数学jj的筒子们）
有一题因为不会做印象深刻！
给了一个表格 说Jim （随便起的名字 如与题目相同 纯属巧合） 有4种硬币 分别是 0.05dollar （不是dollar 不过单位无所谓。。。） x个， 0.1dollar 3个， 0.2 dollar y个，0.25 dollar 3个 然后问if in the nearest dollar how much does Jim have？
LZ表示木有明白这道题目 求讨论 求答案
更正！这题是DS 条件一：x 大于等于1 小于5 （后面数字待确认）条件二：y 小于x    抱歉。。。

唠唠叨叨 却没说多少。 希望对大家有点帮助。。。

ouyangjinyu

哇塞。传说中的沙发吗。。

海砂516

谢过楼主，求确认~！
阅读狗《咖啡》谷歌考古



nicole0773(ID: 726054)4.3一战740，m50,v40。努力地想起一个rc,
是关于科学家研发一个analyze coffee bean aroma的仪器。说原来的仪器有各种drawback。这种新仪器可以通过喷射一种叫m的物质来让不同的aroma显示出不同的color pattern，从而帮助coffee grower分析咖啡。



We have included analyze coffee bean aroma, drawback, color pattern, coffee growing results - Show only analyze coffee bean aroma, drawback, color pattern, coffee grower





Is that Folgers coffee in your cup or Maxwell House? Now you no longer have to rely on your nose to tell. Researchers have developed an analyzer that can distinguish between 10 commercial brands of coffee and can even tell apart coffee beans roasted at various temperatures for different times. The advance could help growers determine within minutes whether a particular batch of coffee is just as good as the previous one or whether it's undrinkable.






Researchers have been trying for years to come up with a simple way to analyze coffee. But it's no easy task. The challenge is that the aroma of roasted coffee beans consists of more than 1000 compounds that change with roasting temperatures and time. Traditional methods of chemical analysis like gas chromatography combined with mass spectrometry generally have difficulty distinguishing between compounds that are very similar to one another. And "electronic noses," an array of dyes, and other sensors that change color or chemical properties when they react with certain molecules suffer from the same drawback.






Over the past decade, chemist Kenneth Suslick and colleagues at the University of Illinois




, Urbana-Champaign, have refined the electronic nose approach. In the new study, they used dyes that interact strongly with other chemicals, making them more specific. They then put drops of 36 dyes on a polymer film the size of a nickel. The pigments in the dyes belonged to a range of chemical classes, including metalloporphyrins (a class of molecules which give blood and chlorophyll their distinctive colors); pH indicators; and molecules that change color with certain chemical vapors.

The device produced a pattern of colors as each coffee's mixture of volatile compounds interacted with the dyes. When the investigators pumped vapors from various coffees including Starbucks Sumatra Roast and Folgers Grande Supreme Decaf-over the arrays, all generated unique color patterns, like a molecular "fingerprint," they report this month in Analytical Chemistry.






The array doesn't give any information about the individual compounds in the aromas. "The important thing is that we can easily tell the difference between different roastings and coffees," notes Suslick. And that should help growers quickly and cheaply analyze problems with coffee, such as burnt flavors, during their initial screening process says food scientist Felix Escher at the Swiss Federal Institute of Technology Zurich.






The applications for the kind of device created by Suslick's team go beyond coffee, says chemist Pavel Anzenbacher Jr. at Bowling Green State




University in Ohio. Similar arrays, he notes, could be used in everything from detecting explosives to spotting contaminants in toothpaste

reebe

感谢楼主！看见狗主人各种激动~

in the nearest dollar是不是指凑成最近的整数啊？求解释

luoluo0312

LZ大好人~~~

cavashawn

我也今天考的，LZ是上午的嘛？

kenny1123

我也今天考的，LZ是上午的嘛？

-- by 会员 cavashawn (2012/4/5 21:17:33)

兄弟，赶紧放狗，这才是正事

reebe

其实那哥们已经放了额

泾渭不凡

谢谢！

Evelyn乐儿

楼主的AI应该是这道题：
Athough most people wish to live long lives,attempting to significantly extend the average human life span woule be a mistake.If achieved,this would place an enormous burden on resources,lowering the quality of life for everyone.

可以从人类寿命延长的消极影响上考虑，比如，人口寿命延长会给这个星球带来负担，为人类自己种下苦果；对于老年人来说，寿命延长会给身体器官带来负担，生命质量大大下降。
---------------------华丽丽的分割线--------------------
我不是NN，只是一只11号要一战的菜鸟。。。看到楼主的题，忽然花现自己看过，在此分享给大家，希望能对4er有帮助，FIGHTING!!!!! 论据参考了新东方的G写作论证论据素材大全……
最后十分感谢楼主放狗！！！！
图书馆关门，回寝室继续。。。