2006年8月队请进！欢迎大家来讨论

silviaqiu

看到了！谢谢队长的倾情奉献

mymengming

Q1:

So dogged were Frances Perkins’ investigations of the garment industry, and her lobbying for wage and hour reform was persistent, Alfred E. Smith and Franklin D. Roosevelt recruited Perkins to work within the government, rather than as a social worker.

 

1. and her lobbying for wage and hour reform was persistent,
           
2. and lobbying for wage and hour reform was persistent, so that
           
3. her lobbying for wage and hour reform persistent, that
           
4. lobbying for wage and hour reform was so persistent,（E）
           
5. so persistent her lobbying for wage and hour reform, that

选E,但是题目的划线错了,不包括and

有and的话肯定不可以省的

以前讨论的,是多划了and

silviaqiu

多谢！

mymengming

队里面复习的好的NN可以抽空整理些比较Trick的数学,比较容易上当的,这样可以节约差的G友的时间.

偶看了去年8月的数学JJ,费了2天时间,感觉没有收获,还不如看2个GWD的数学收获大

偶的verbal比较差,不然就担当此大任了

感觉没有必要每个人在那些比较垃圾的题目上费时间的阿

[此贴子已经被作者于2006-7-27 19:54:54编辑过]

mymengming

452. stock x 面值40, stock y 面值25, 到当天交易结束时, x售出价是41, y的售出价是28.5, 问 the percentage increase of y stock is what percentage point greater than the percentage increase of stock x? 我是这么做的: (28.5-25)/25-(41-40)/40=0.115 因为问的是多多少个百分点(percentage point),所以选11.5(小心,你又算错了,是percentage point,不是percent!!!)

 

 

 

 

57 DS: somebody invested 17,000, interest rate x% simply rate and have Z dollor interest, what would he have to invest in a account which has y% interest rate, simple rate so that he can have same interest. A. X=2 B Y=50%X

happy: 列式：17000 * X% = M* Y%

单利，利息＝利率×本金，所以知道Y和X的比例就可以求出M了。

 

 

 

 

68 DS 夏天裡七月的sales比六月多X%,八月的sales比七月多Y%請問八月比六月多%? A. X+Y=10 B. (1+X%)(1+Y%)=一个整数

 

 

 

 

71 DS 30是 N的factor嗎? A. 30 是N^2的factor B.30 是2N的factor

 

 

 

 

83 Ds m and n are integers, is m^n an integer?
1) n^m is positive
2) n^m is an integer
参考答案：C
狗狗:

(1)n^m为正, n 可为正或复, 则m^n就可能为整数或倒数

(2)n^m为整数, 则m>0, 但n同(1)一样, 可为正负, , 因此m^n也未知

(1)+(2)n^m为正整数, 一样m>0, 但n值可为正负, 因此m^n也未知

因此答案(E)

horsefish:E

blackhorse: 特殊法，n＝－2，m＝2；
   

philikittist: (-1)^2=1是正整数，2^(-1)=1/2不是整数,

 

 

 

 

99 6 个人分到3个组，每个组俩人。问共有多少种分法.

SA: 3个小组有区别的话是C62*C42*C22=90；

没有区别的话是（C62*C42*C22）/P3=15

 

 

 

 

 

 

152 DS
正整数n，n*(n+1)*(n+2) 是否能除尽12

 

 

 

 

131、15% of all trees planted in the F and not flowered.40 percent of trees planted in the F are flowered.what is the percent of trees planted in the F?
a, 55% b,25% 这题我差点选错,一开始选A 后来改为 B

 

 

 

 

194 兩個事件A, B概率分別0.5，0.4，問A不發生，B也不發生的概率的範圍？
解題思路:AB互斥，P=1-0.5-0.4=0.1
A包含B,P=1-0.5=0.5
範圍(0.1,0.5)

 

 

 

 

403 A/5 餘 3, A/7 餘4, B/5餘3, B/7餘4. 下面的數哪個可能是A-B的因數 12,15,24,35,48
解題思路:A=5a+3 B=5b+3 A-B=5(a-b)
A=7a+4 B=7b+4 A-B=7(a-b)
so, 既能被5整除也能被7整除, 35可以滿足條件.

 

 

 

 

565.
    有6个人分成3组，然后再分别呈述一个课题，分别是关于北美，亚洲，和欧洲的，每个组都是不同的课题。然后求全排列
   

A．15

B．30

C．36

D．64

E．90

我算了好几遍，不知道是不是我理解错了，我认为是c(6,2)c(4,2)p(3,3)

可是没有正确选项，左后我选了E，只是排列了6个人，但是我认为我错了这题

 

 

[此贴子已经被作者于2006-7-27 20:02:53编辑过]

mymengming

去年8月,数学看完这几题就ok

剩下都是LJ

抛砖引玉

nofacetou

TT GWD上有一题CR
找不到对应的题号，就先在这里问紧

    

The population of desert tortoises in
Targland’s Red
                Desert has declined, partly because they
are captured for sale as pets and partly because people riding all-terrain
vehicles have damaged their habitat. 
Targland plans to halt this population decline by blocking the current
access routes into the desert and announcing new regulations to allow access
only on foot.  Targland’s officials
predict that these measures will be adequate, since it is difficult to collect
the tortoises without a vehicle.

    

 

    

Which of the following would it be most
important to establish in order to evaluate the officials’ prediction?

    

 

    

1. Whether possessing the tortoises as pets remains legally
        permissible in Targland
2. Whether Targland is able to enforce the regulations with
        respect to all-terrain vehicle entry at points other than the current
        access routes
3. Whether the Red
                       Desert tortoises are
        most active during the day or at night
4. Whether people who travel on foot in the Red
                       Desert
        often encounter the tortoises
5. Whether the Targland authorities held public hearings before
        restricting entry by vehicle into the Red
                       Desert

    
这题当初做的时候在B和D之间犹豫了好久，最后还是选D了，B我觉得好像扩大了范围

mymengming

D不对吧,

yes,没有意义

no也没有意义阿

mymengming

Targland’s officials predict that these measures(禁止车) will be adequate, since it is difficult to collect the tortoises without a vehicle.

B回答

yes 有效,停止减少

no 无效,继续减少

[此贴子已经被作者于2006-7-27 21:25:35编辑过]

allen0018

总算看见有战友和我数学水准一样了

哈哈~~~

晕，有什么好笑的