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[原始] 4.1北京放狗-主数学-感恩cd

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楼主
发表于 2016-4-1 19:17:04 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
构筑主要放放数学,51分。因为语文实在...四篇阅读都中了还考不到30...最后说一下语文吧~
数学cd鸡精已有的:
1.鸡精77题,酒+水操作题,1/2 1/3 1/4那道答案3/4 数学君解题过程棒棒哒
2.鸡精10题,这题因为鸡精没给确定答案,主要问题在于第一句话,我反复读了很多遍:A code word is any sequence of letters of alphabet,原句应该是这样,我理解的是可以是字母表里任意个数字母的任意序列,所以选了D
3.鸡精16题,我的题是c点在-1和0之间靠近-1,d点在-1和0之间靠近0。其实出题思路是想考-0.5的倒数是-2,那么小于-0.5的倒数才大于-2,所以我选了D
4.鸡精18题,原构筑和数学君解答很好
5.鸡精19题,原构筑和数学君解答很好
6.鸡精39题,原构筑题目描述OK的,就是先介绍了一下相似三角形对应边成比例,然后画图说了好吧我画个图,图长这样

5feet高的人每秒走2feet,求影子每秒变化。假设走了一秒就好了,那么图就变成好吧我再画一个。然后式子25/5=(22+x)/x,算出x=5.5,于是每秒增加5.5-5=1/2就出来啦,其他答案不记得了反正没有5.5,我要是gmac我就给个5.5我自己一定会选...
7.鸡精49,看原构筑和整理君就够啦
8.鸡精51,看原构筑和整理君就够啦
9.鸡精58,题目是这样的,给了个式子r/x + r=-x,应该是酱紫(妈呀才考完5个小时就记不清了)。然后问以下哪个x能使得r有取值,反正x=0肯定不对,在分母算式就没意义了,其他就一个个试吧。1,-1什么的。原构筑1是对的,因为x=-1原式就变成0=1,r是几都不成立所以没取值。
10.鸡精80题类似,(x-2)(x-5)+k=(x-3)(x-a)+2, (我居然还记得清数),k.a都是常数,让求a,展开来就跟k没什么关系啦,7=3+a,选a=4,符号别搞错哦,不然迷惑选项a=-4就给你选了

鸡精没有的:
1.最后出现了一道大数计算,内心默默吐槽gmac真会考。m国workforce5617000,government 工作的人占25%,n国0workforce26144000,govern工作人员占15%,前者用x表示,后者用y表示,求x-y。数字应该大概对,反正算出来x比y小,所以答案是负的,要注意这个考点,-250000的样子,选项是250000,200000,0,-200000,-250000,选E

2.根号5乘以根号0.0003除以根号0.0025,答案根号0.6,选项还有根号6,根号0.3之类的

3.ds(比较难回忆起来)关于mod-模的题,符号是三横,就是等号多一横,我直接说模了手机打不出来,题目解释了一下x模y等于x除以y的余数,然后问x模6结果是几?
条件1:x模3等于x模12
条件2:x模4等于2
这题构筑花了好多时间想了半天枚举好多例子!第一个条件只能说明x除以3,除以12余数都一样。12,13,24,25什么的,余数0-2都有可能所以ns。但要知道这样的数周期是12
第二个条件单独看,6.10.14.18.22.26.30..都可以,模6余数也无法定下来,ns
两个条件结合起来就只有14,26这些数可以了,周期12,所以x模6=2就可以确定了。选C

4.n是一个positive integer正整数,x是一个real number实数,问以下哪个表达式里x一定是整数。
选e.根号x = n
其他选项x=n/(n+3)之类的,举个反例很快就排除了,时间比较紧的同学建议从最后一个选项开始试,一般这种ps题都是最后一个答案,因为要一个个试啊...

5.n=abcx,abcx是四个不同的质数,问n的因数divisors,除了excluding 1和n,
c41+c42+c43就可以了,选a.14 其他答案12.10.8就12比较迷惑吧,如果像我一样一开始把1和n算进去还没有算c43的话....

6.ds:y=a(x+h)²+k,(看題蒙了一下rectangular coordinate也是坐标系的表达啊..)a.h.k都是常数还是什么的,问y与x轴几个交点,
1.h=0
2.k=0
选b,条件2就够了,做的时候h和k搞晕了也不记得选对没。令y=0就OK啦。

语文:
阅读真的是中了四篇:8.宇航员和科学家合作(已确认)
24. Beetle化石和气候变化(已确认)
最后这一篇真的。。遇到应该是证明你进入高分题库了。。又看了一下机经基本大家都对第三段比较迷惑。。

SC:
好多不认识的词。。。好几个短划线好迷惑。。。

CR:
好多不认识的词。。一个黑脸题,最烦黑脸题,不过这次遇到的这个好像不是很难。
therefore,since···,···

真的一个完整的题都想不起来。。等回忆起来再来改帖子。感谢CD!
话说今天北京9点另外一个构筑应该是跟我同一场。。
我11号那个靠门的位置真是。。还行啦。不过今天有好多认识的人,考官就说要把他们分开~
排队验掌纹的时候有一个很没教养的小伙,老师让他掏兜,然后里面有只笔,老师让他拿出来,他啪一下掏出来笔滚到了老师手边。。老师沉默了3秒。。汗颜。然后平静地让他把笔放到柜子里去。。。

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沙发
发表于 2016-4-1 19:57:47 | 只看该作者
超级感谢分享~
板凳
 楼主| 发表于 2016-4-1 20:01:18 | 只看该作者
地板
发表于 2016-4-1 20:22:38 | 只看该作者
感谢楼主
5#
发表于 2016-4-1 20:42:18 | 只看该作者
宇航员那篇这个是原文么!求确认!
Over the past decade two subfields of science, cosmology and elementary-particle physics, have become married in a symbiotic relationship that has produced a number of exciting offspring. These offspring are beginning to yield insights on the creation of spacetime and matter at epochs as early as 10^43to 10^35 second after the birth of the universe in the primordial explosion known as the big bang. Important clues to the nature of the big bang itself may even come from a theory currently under development, known as the ultimate theory of everything (T.O.E.). A T.O.E. would describe all the interactions among the fundamental particles in a single bold stroke.

The confluence of cosmology and particle physics is even changing the way science is done. Traditionally astronomy has been an observational rather than an experimental science, in which passive observations were made with telescopes and actively controlled experiments have been virtually unknown. Traditionally the tools of particle physics have been high-energy accelerators. Now that cosmology has begun to make predictions about elementary-particle physics, it has become conceivable that those cosmological predictions could be checked with carefully controlled accelerator experiments. It has taken more than 10 years for accelerators to reach the point where they can do the appropriate experiments, but the experiments are now in fact in progress. The preliminary results confirm the predictions from cosmology.

It appears therefore that cosmology has become a true science in the sense that ideas not only are developed but also are being tested in the laboratory on time scales that are shorter than a scientist's lifetime. This is a far cry from earlier eras in which cosmological theories proliferated and there was little way to confirm or refute any of them other than on their aesthetic appeal. Conversely, telescopes may eventually be employed to test ideas from fundamental physics, such as proposals for a T.O.E. Indeed, tests of theories involving interactions of particles with enormous energies could very well have only one available laboratory: the big bang itself.
6#
发表于 2016-4-1 20:52:05 | 只看该作者
感谢分享!               
7#
发表于 2016-4-1 21:33:26 | 只看该作者
感谢楼主分享。记忆力真好
8#
发表于 2016-4-1 21:38:45 | 只看该作者
谢谢楼主
9#
发表于 2016-4-1 21:58:59 | 只看该作者
构筑可以解释下这个题吗?
5.n=abcx,abcx是四个不同的质数,问n的因数divisors,除了excluding 1和n,
c41+c42+c43就可以了,选a.14 其他答案12.10.8就12比较迷惑吧,如果像我一样一开始把1和n算进去还没有算c43的话....
10#
发表于 2016-4-1 22:48:22 | 只看该作者
A code word is any sequence of letters of alphabet
条件1直说没有重复字母,不确定有几位怎么确定啊?
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