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[梦之队日记] Sailing to success(快乐备考,携手同行)

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1511#
发表于 2007-1-16 05:45:00 | 只看该作者
本月的作文黄金80在哪?
1512#
发表于 2007-1-16 09:20:00 | 只看该作者

请问这道GWD的assume答案是什么?如果strenghtern可以从那个方面来

This is the only GWD (17-q9)I encountered, but the question is changed, ask for strengthern, not assume, and the five selections are totally different, so I am confused at that time and remember nothing.



Q9:

Press Secretary: Our critics claim that the President’s recent highway project cancellations demonstrate a vindictive desire to punish legislative districts controlled by opposition parties. They offer as evidence the fact that 90 percent of the projects canceled were in such districts. But all of the canceled projects had been identified as wasteful in a report written by respected nonpartisan auditors. So the President’s choice was clearly motivated by sound budgetary policy, not partisan politics.

Which of the following is an assumption on which the press secretary’s argument depends?

  1. Canceling highway projects was not the only way for the President to punish legislative districts controlled by opposition parties.
            
  2. The scheduled highway projects identified as wasteful in the report were not mostly projects in districts controlled by the President’s party.
            
  3. The number of projects canceled was a significant proportion of all the highway projects that were to be undertaken by the government in the near future.
            
  4. The highway projects canceled in districts controlled by the President’s party were not generally more expensive than the projects canceled in districts controlled by opposition parties.
            
  5. Reports by nonpartisan auditors are not generally regarded by the opposition parties as a source of objective assessments of government projects.
1513#
 楼主| 发表于 2007-1-16 11:21:00 | 只看该作者

谢谢大家,除了下面这两个,那堆问题都明白了。

33.一个几何的一个长方形,周长150,里面很多小长方形,以原长方形的宽为长,周长是56,问有多少个这样的小长方形. (具体数字也是不很sure.......)
设大长方形的长为a,宽为b,小长方形的周长为(2b+2a)/n

(2b+2a)/n岂不是有好多重复吗?小长方形的长边长是共用的,不是吗?画图也画不明白。

119. X 四舍五入后是否是3
1) X^2
四舍五入后是9
2) X^3
四舍五入后是27

这个不知道解题思路

新问题:

230. DS 能否得出 5x+y>0
1. x+y>0
2 .xy<0

用线性规划比较想得明白(我看了rio的解释说用画图,可还是不懂
       

答案:E

182.有一个数列a1,a2,,an, S=sum(a1,a2,,an), 问这个数列中是否至少一项为odd?
1) s/n
odd
2)sn
odd
答案是B

条件1:当a1=2,a2=4, s/n=3;a1=2,a2=4,a3=6, s/n=4

这个题里面的S=sum(a1,a2,,an), 是什么意思呢?

是不是很多数学题都没有什么公式,像那个152一样,有了思路之后再就要靠细心了,想得周到才行?

刚刚找到119的讨论了,如下:

X 四舍五入后是3x肯定是大于0的,由于条件一里面x可以是负数,所以1不充分。条件2由于x的三次方的正负和x一致,所以可以推出x的大小。所以选B.


[此贴子已经被作者于2007-1-16 11:57:42编辑过]
1514#
 楼主| 发表于 2007-1-16 11:28:00 | 只看该作者

fanfan,那道GWD逻辑题的assume答案是B。

如果是strengthen,感觉方向和答案内容应该差不多,因为assumption本身也是加强吧?

逻辑偶没发言权。

1515#
发表于 2007-1-16 11:40:00 | 只看该作者
以下是引用fantasy06在2007-1-16 5:45:00的发言:
本月的作文黄金80在哪?

fanfan,没有“本月的黄金80”(黄金80必定是一段时期内才能总结出来,可以看以前的黄金),只有当月高频,就是AWA机经区的那个表,里面标明了题目出现的考频,时间不够就挑高频来看。


[此贴子已经被作者于2007-1-16 11:40:29编辑过]
1516#
发表于 2007-1-16 13:22:00 | 只看该作者

33题答案都有什么?我根据条件可以推出无数个....

设大长方形:长为X、宽为Y;里面的小长方形:长为Y、宽为Z

从条件中得出1、X+Y=75;2、X+Z=28  推出X-Z=47

隐含条件0<Z<14;14<Y<28;47<X<61

问题问的是X/Z  仅从上述条件可以 若取Z=0.00...001

则X=47.00...001  这样算出来答案变为无穷大!~

是不是题目还有什么条件???

230题:1、XY<0推出X、Y异号,

       2、X+Y>0推出正号的那个数大

两个条件都无法推出哪个是正数哪个是负数,且正数比负数大多少,所以无法推出5X+Y>0

182题:S=sum(a1,a2,,an), 表示a1+a2+a3+a4+....+an;若想要知道其中至少一项为奇数,则必须S等于奇数,否则若S为偶数我们无法知道其中一项是否为奇数。(奇+奇=偶,奇+偶=。偶+偶=偶)

  条件1:s/n为奇数 无法推出s为奇数(因为若n为偶数,奇*偶=偶)

条件2:sn为奇数  正好推出n为奇数(因为只有奇*奇=奇)

1517#
发表于 2007-1-16 13:26:00 | 只看该作者

以下是引用fantasy062007-1-16 9:20:00的发言:

请问这道GWDassume答案是什么?如果strenghtern可以从那个方面来

This is the only GWD (17-q9)I encountered, but the question is changed, ask for strengthern, not assume, and the five selections are totally different, so I am confused at that time and remember nothing.

 

Q9:

Press Secretary: Our critics claim that the President’s recent highway project cancellations demonstrate a vindictive desire to punish legislative districts controlled by opposition parties. They offer as evidence the fact that 90 percent of the projects canceled were in such districts. But all of the canceled projects had been identified as wasteful in a report written by respected nonpartisan auditors. So the President’s choice was clearly motivated by sound budgetary policy, not partisan politics.
  

A.      The scheduled highway projects identified as wasteful in the report were not mostly projects in districts controlled by the President’s party.
  

这个不好说,可能如B所说,那些被认为是没用但又上马的project并不是总统所在的party所控制的,也可能是provide一些另外的info,说明总统是根据budget来选择project的。别慌,知道题目已经很好了,起码有个谱了。见机行事就行了。

 

1518#
发表于 2007-1-16 13:35:00 | 只看该作者

谢谢大家!脑子浆糊了,还在math JJ 呢,作文JJ 和魔板到考场前看了。

1519#
发表于 2007-1-16 13:41:00 | 只看该作者

对,你时间紧,M的机经最重要,模板得背背,别的就靠边站吧~~

废话不多说了,fanfan轻松上阵,考出自己的水平就行了,偶们等你的好消息~~

ps:表睡得太晚啊,充足的精神也是致胜的关键呐~~

1520#
发表于 2007-1-16 13:49:00 | 只看该作者
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argu新43  新62   issue新36  新39   是什么呀?

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