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标题: 10.06放个爆炸狗 [打印本页]

作者: o_yeah    时间: 2018-10-6 16:19
标题: 10.06放个爆炸狗
10.06上午考炸了,放个爆炸狗
考场SC感觉和平时练的GWD-SC完全不是一个套路的
YD:

1.P1:讲了环境学家(一个E开头的单词,应该是环境学家吧)现在可以用电脑模拟来解决xxx问题了,但之前如果遇到同样问题的时候,没法给出结果。
P2:环境学家这么这么做的
P3:记得举了个例子,环境学家用了这个高科技,可以发现并且提前用一些措施保护这些最可能受伤的小动物(考题:以下5个选项哪个跟文中讲的最像?我选了:可以判断出城市里狗位置,防止被drilling伤害,不确定)

2.寄生蜂:跟之前JJ差不多,补充一下:科学家们做了个实验,用刀片把植物叶子给切了,来模仿虫子咬。发现植物也分泌了一种化学物质,但这种化学物质不能吸引寄生蜂。然后另一个实验:把虫子嘴里(oral)分泌物也用上了然后再切叶子,植物分泌了能吸引寄生蜂的化学物质。得出结论:虫子嘴里分泌物是吸引蜜蜂必须的。(考题:假如科学家发现:用刀片切了,没用虫子嘴里分泌物,植物就分泌了能吸引寄生蜂的物质的话,科学家会得出以下哪个结论?)

3.讲美国语言的,记的不是很清了(慎用)。开始讲了一个大家公认的xxxxx年前是美国语言?的开始。一个科学家提出:美国人语言是由几种语言构成的。后面作者评判说:就算这个学者研究是对的,也证明不了xxx这个问题。(考题:文中说的是:xxx不是一个非语言现象,选项E里说的是不是一个非基因现象。亲一定要注意这个选项是错的!别选!!!)
LZ相比人文类阅读,更喜欢科技自然类阅读。

YF:
记得一个:说A东西和B东西应该同时并且一起做什么什么东西。考的是这里的“同时"和“一起”是当形容词还是副词呢?

LJ:
lz回忆一下,现在没想起来。


SX:
1.  ts/k > 0?  (1)ts/k^2 >0 (2) ts > t+s(忘了,这个是个残狗)
2.  某黑心老板,之前定的profit margin(on cost)是10%,后来涨价了,profit margin(on cost)是15%了。现在售价价格给了;问之前没涨价之前黑心老板卖多少钱呢?
3.  8个桌子铺桌布。铺好后,发现每个桌面的每个边都下垂了0.5m。桌面长x宽y。问所有8个桌子,下垂部分面积之和是多少?(8x+8y+8)
4.  遇到了至少俩带绝对值的题,思路:小于-1的数字的平方、立方的绝对值 都比 这个数的绝对值要大。
5. 还有个题,问是多少?题干很容易能求出:x=y或x,y数可求。DS:(1)x!=y  堵了第一条路,xy就可求了(2)x<0;y>0(其实和条件1是一样的)
6.  还有个DS题,问xy是多少,这个题:俩条件给出来,发现要么x是0,要么y是0。所以xy是可以求出来的是0
7.  18是几对质数之和?(2对)5+13;7+11



IR:
1.用N个小正方体拼成了一个大正方体。然后这些小正方体里25%是绿色的,其他的是蓝色的。问哪个是可能的组合?(16绿+48蓝=64)
2.14个文件,3个记者,每个文件必须被2记者度过,每个记者最少读6个文件。问哪个是一定的,哪个是不可能的? 选项是(类似):至少一个记者读了xx份文件?至多一个记者读了xx份文件。至少一个记者只读了x份文件。之类的选项。
3.球队。出场A队和B队混一起站一排,之前顺序AABBBAABAAA(就是一大堆混乱的AB排列,具体记不清了,但格式是左边这样的。),之后顺序AABAABABBBABA就是一大堆混乱的AB排列,具体记不清了,但格式是左边这样的。)要求:如果前四个人里有仨是一个队伍的,这个人就要被调到最后。问前三个被调的人和后三个被调剂的人?

想起再加,发帖攒人品,各位加油!
CD佑我Verbal 30+


作者: o_yeah    时间: 2018-10-6 16:42
想起一个,一个PIE chart(一共一百人),四个血型 A/B/AB/O,每种血型都有Rh-,问100个人里,抽到AB型orRh-的概率?(0.2)
作者: o_yeah    时间: 2018-10-6 17:29
(x+5)(x-3)<0, 问选项中哪个表达式可以保证<0?
I. 3-x
II. 3x-7
III.
作者: Akiii    时间: 2018-10-6 18:44
lz,profit margin(on cost) 意思是分母是cost,不是sales吗?还有桌布这道为啥要+8啊
不是2*(0.5x+0.5y)*8吗。。。
谢谢!

作者: 圆圆圆滚滚lin    时间: 2018-10-6 19:14
感谢分享!               
作者: o_yeah    时间: 2018-10-6 19:28
Akiii 发表于 2018-10-6 18:44
lz,profit margin(on cost) 意思是分母是cost,不是sales吗?还有桌布这道为啥要+8啊
不是2*(0.5x+0.5y ...

1.对的,是基于cost的
2.[(x+0.5+0.5)(y+0.5+0.5)-xy]*8
作者: Akiii    时间: 2018-10-6 19:44
o_yeah 发表于 2018-10-6 19:28
1.对的,是基于cost的
2.[(x+0.5+0.5)(y+0.5+0.5)-xy]*8

啊懂了,非常感谢!!!
作者: SW13    时间: 2018-10-6 20:18
感谢狗狗!!加油加油!
作者: OLIVIAHAN777    时间: 2018-10-7 20:27
感谢分享!               
作者: iversonwhh    时间: 2018-10-8 10:02
Akiii 发表于 2018-10-6 19:44
啊懂了,非常感谢!!!

我也觉得是8x+8y呢,哪里有问题吗?
作者: Akiii    时间: 2018-10-8 11:14
iversonwhh 发表于 2018-10-8 10:02
我也觉得是8x+8y呢,哪里有问题吗?

四个角角的小矩形也要加进去哦
作者: ScarlettDeng    时间: 2018-10-8 11:27
想问下楼主,请问原文是以下这篇吗?


24.美国语言 原文感觉以下这篇很像  https://www.nytimes.com/2012/07/12/science/earliest-americans-arrived-in-3-waves-not-1-dna-study-finds.html

Earliest Americans Arrived in Waves, DNA Study Finds

North and South America were first populated by three waves of migrants from Siberia rather than just a single migration, say researchers who have studied the whole genomes of Native Americans in South America and Canada.

Some scientists assert that the Americas were peopled in one large migration from Siberia that happened about 15,000 years ago, but the new genetic research shows that this central episode was followed by at least two smaller migrations from Siberia, one by people who became the ancestors of today’s Eskimos and Aleutians and another by people speaking Na-Dene, whose descendants are confined to North America. The research was published online on Wednesday in the journal Nature.
后来有个Green博士由此提出一个理论(好像与上面是承接关系,不是转折):3个种族的人immigrate过来,3个语言。Green博士提出这些语言是来源三个不同的语言种族,可能是因为他们的migration貌似。后来作者就说,G说的三个语言即使是对的,后面更详细的信息的得出也不大可能解释现实,因为基因的检测不符合他的理论。因为基因的检测不符合他的理论。


The finding vindicates a proposal first made on linguistic grounds by Joseph Greenberg, the great classifier of the world’s languages. He asserted in 1987 that most languages spoken in North and South America were derived from the single mother tongue of the first settlers from Siberia, which he called Amerind. Two later waves, he surmised, brought speakers of Eskimo-Aleut and of Na-Dene, the language family spoken by the Apache and Navajo.

But many linguists who specialize in American languages derided Dr. Greenberg’s proposal, saying they saw no evidence for any single ancestral language like Amerind. “American linguists made up their minds 25 years ago that they wouldn’t support Greenberg, and they haven’t changed their mind one whit,” said Merritt Ruhlen, a colleague of Dr. Greenberg, who died in 2001.

The new DNA study is based on gene chips that sample the entire genome and presents a fuller picture than earlier studies, which were based on small regions of the genome like the Y chromosome or mitochondrial DNA. Several of the mitochondrial DNA studies had pointed to a single migration.

A team led by David Reich of Harvard Medical School and Dr. Andres Ruiz-Linares of University College London reported that there was a main migration that populated the entire Americas. They cannot date the migration from their genomic data but accept the estimate by others that the migration occurred around 15,000 years ago. This was in the window of time that occurred after the melting of great glaciers that blocked passage from Siberia to Alaska, and before the rising waters at the end of the last ice age submerged Beringia, the land bridge between them.

They also find evidence for two further waves of migration, one among Na-Dene speakers and the other among Eskimo-Aleut, again as Dr. Greenberg predicted. But whereas Dr. Greenberg’s proposal suggested that three discrete groups of people were packed into the Americas, the new genome study finds that the second and third waves mixed in with the first. Eskimos inherit about half of their DNA from the people of the first migration and half from a second migration. The Chipewyans of Canada, who speak a Na-Dene language, have 90 percent of their genes from the first migration and some 10 percent from a third.

It is not clear why the Chipewyans and others speak a Na-Dene language if most of their DNA is from Amerind speakers. Dr. Ruiz-Linares said a minority language could often dominate others in the case of conquest; an example of this is the ubiquity of Spanish in Latin America.

If the genetics of the early migrations to the Americas can be defined well enough, it should in principle be possible to match them with their source populations in Asia. Dr. Greenberg had argued on linguistic grounds that the Na-Dene language family was derived from Ket, spoken by the Ket people in the Yenisei valley of Siberia. But Dr. Reich said there was not yet enough genomic data from Asia or the Americas to make these links. His samples of Na-Dene and Ket DNA did not match, but the few Ket samples he had may have become mixed with DNA from people of other ethnicities, so the test, in his view, was inconclusive.

The team’s samples of Native American genomes were drawn mostly from South America, with a handful from Canada. Samples from tribes in the United States could not be used because the existing ones had been collected for medical reasons and the donors had not given consent for population genetics studies, Dr. Ruiz-Linares said. Native Americans in the United States have been reluctant to participate in inquiries into their origins. The Genographic Project of the National Geographic Society wrote recently to all federally recognized tribes in the United States asking for samples, but only two agreed to give them, said Spencer Wells, the project director.

Interracial marriage — or admixture, as geneticists call it — may have distorted earlier efforts to trace ancestry because subjects assumed to be American may have had European or other DNA admixed in their genomes. Dr. Reich and his colleagues have developed a method to define the racial origin of each segment of DNA and have found that on average 8.5 percent of Native American DNA belongs to other races. They then screened these admixed sections out of their analysis.

Archaeologists who study Native American history are glad to have the genetic data but also have reservations, given that several of the geneticists’ conclusions have changed over time. “This is a really important step forward but not the last word,” said David Meltzer of Southern Methodist University, noting that many migrations may not yet have shown up in the genetic samples. Michael H. Crawford, an anthropologist at the University of Kansas, said the paucity of samples from North America and from coastal regions made it hard to claim a complete picture of early migrations has been attained.

“Sometimes the statisticians make wonderful interpretations, but you have to be very guarded,” he said.

The geneticists’ finding of a single main migration of people who presumably spoke a single language at the time confirms Dr. Greenberg’s central idea that most American languages are descended from a single root, even though the genetic data cannot confirm the specific language relationships he described.

“Many linguists put down Greenberg as rubbish and don’t believe his publications,” Dr. Ruiz-Linares said. But he considers his study a substantial vindication of Dr. Greenberg. “It’s striking that we have this correspondence between the genetics and the linguistics,” he said.




作者: o_yeah    时间: 2018-10-10 10:14
发表于 2018-10-08 11:27:55
想问下楼主,请问原文是以下这篇吗?


24.美国语言 原文感觉以下这篇很像  https:/...

对!是这个,但是似乎不全




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