[原创]记忆狂人bluegold倾情回报CD，超多数学JJ。11.11厦门

bluegold998

呵呵，虽然说是记忆狂人，其实大部分都是刚考完记下的，而且是数学为主，不过本月机经没出现过的还是挺多的，大家看吧。

M:51,v:39,总750。

可惜作文不太好，挺危险的。

AA:
The following appeared in the letters-to-the-editor section of a local newspaper:
“Muscle Monthly, a fitness magazine that regularly features pictures of bodybuilders using state-of-the-art exercise
machines, frequently sells out, according to the owner of Skyview Newsstand. To help maximize fitness levels in our
town’s residents, we should, therefore, equip our new community fitness center with such machines.”
Discuss how well reasoned . . . etc.

AI:
“All citizens should be required to perform a specified amount of public service. Such service would benefit not only
the country as a whole but also the individual participants.”
Discuss the extent to which you agree or disagree with the opinion stated above. Support your views with reasons
and/or examples from your own experience, observations, or reading.

数学：
1、六边形（hexagon）,面积96×（3的根号），求六边形的边长。
 answer： 8。
2、一个群体，70％是女的，问这个群体的平均岁数是否大于45。
 1）群体中男子的平均岁数是68；
 2）群体中女子的平均岁数是65；
  answer: B
3、A把自己的对帐单四舍五入进行统计， 问（四舍五入后的数额总和）与（不进行四舍五入的帐单的实际数额和）相差是否大于$8；
 1）每张帐单的价钱都小于$7.75;
 2）总共有14张帐单；
   answer: B;
4、n=72,问多少×n之后是一个cubic number
 答案： 3。（这题差点不小心选错，还好点Next之前看清了是cubic，不然就选成2了）
5、x+ry=2(r是常数)，求r。
 1）线过点（r,1）
 2)线过点（1，r）
  answer： A;
6、A占花费的25％，B占t％，B的数额是150，000，剩余的是C，C的数额比总额少225,000，求t。
  答案，50％。（这题花了我快10分钟，因为开始条件看错了，以为是C比AB总和少225000，结果怎么算都不对）
7、等边三角形内切圆半径为r，求三角形周长。
  答案 6r（3的根号）。
8、一个群体90人，申请，求acceped的人数：
  1）男的中有2/3通过，女的中有1/3通过；
  2）总共有26个男的通过。
   答案：C.
9、210除了1之外有几个奇数因子：
  答案：7个。
10、抛物线y=mx^2+h是否有跟X轴相交
  1）m<0;
  2）h>0;
   答案：C；
11、DS xy为奇数？
 1）x/y为奇，2）x、y都为奇数；
   答案：B。
12、题干没什么内容，就是求food消耗了多少钱？
 1）food 的消耗是clothing的2倍；
 2）housing的消耗占总消耗的40％，（food＋clothing）的消耗占总消耗的30％，前者比后者多200。
  答案：C。
13：R1/R2=1.4,求[(R1-R2)/(R1+R2)]^2的近似值。
  答案：0.03;
14、t=0.01,求（1－t^4）/(1-t),
  答案：1.010101。
15、DS   x,n整数，n^x+2n 可以被3整除吗？
 1）x=3;
 2) n=5;
  答案：A。
16、正方形周长2，求面积：
  答案：1/4;
17: ?求直线的斜率。
  1）直线过点（2,r）;
  2) 直线过点（r,17）;
   这题题目记不太清了，大概是这样。
18：挖一块地，长5000，宽不记得了，高度从15下降到25。有个装废土的地方，容量是73500（具体数字不记得了），求这个装废土的地方能装挖出来的土的多少。

19：y=kt^2,k为常数。当t=2时，y=-50,求t=4时，y＝？
  答案：-200.
20、y=(1-k/2)x+(2-x)k/2,求斜率。
  答案：1－k.
21、A有五个成绩，求median。
 1）第三高的成绩为80；
 2）最低成绩为70；
  答案：A。
22、有a,b,c,d,e五个数，问c是否是median.
 1)c>a,d<e;
 2)b<c<d; 
  答案：c。（此原题是用x,y,z等表示的，记不清了，但选项的逻辑关系应该没记错）。
23：A:B:C=9:4:5,B大于7，求B。
 1）A＋C小于30；
 2）A+C等于28。 （题目好像是这样，记不清了，另此题是应用题，条件要归纳才成我这样）
24：就是原来机经的f(m)=9f(n)那道。
25：五辆颜色汽车，三红一兰一绿，求排列，原有机经已有，不重复。
26：机经已有，A33,B29，C24，A交B5，A交C5，B交C6，ABC共有3，求所有的和。

阅读：第一篇是机经已有Chinese American研究letters,题目不难。
      还有一篇是讲物种灭绝的原因，第一段讲volcanism是主要原因，第二段讲另一种观点是海平面下降引起的。
 第三篇是GWD-16-35-37,其中37是原题，其余题没见过。

RC: 什么都不记得了。
SC： 有一题是考make up/make up of的用法区别的；
 one of X  (do/does)这题不是定语从句，我是选用does的用法，其余不记得了。

数学又想到一题，27、原来有的  7^(-1)/42^(-8)

sinoversion

sofa

Matrixrl

楼主好样的,支持,赞

guojunnz

７５０＋２６道数学ＪＪ！！！！牛！！！！

 向你学习，多写机井！！

Matrixrl

而且连答案也给了,以后要向你学习了

simonheart

狂人  !!!!!   你真的是狂人!!!!!!

lichunyi

7、三角形内切圆半径为r，求三角形周长。
  答案 6r（3的根号）。

等边三角形？

rxf9703

GWD-16-35-37我的GWD版本里面怎么好象没有啊？bluegold狂人能不能给帖一下，谢谢！

bluegold998

Many economists believe that a

       high rate of business savings in the

       United States is a necessary precursor

Line       to investment, because business sav-

  (5)      ings, as opposed to personal savings,

comprise almost three-quarters of the

national savings rate, and the national

savings rate heavily influences the

overall rate of business investment.

 (10)      These economists further postulate

that real interest rates—the difference

between the rates charged by lenders

and the inflation rates—will be low when

national savings exceed business

 (15)      investment (creating a savings surplus),

and high when national savings fall

below the level of business investment

(creating a savings deficit ).  However,

during the 1960’s real interest rates

 (20)      were often higher when the national

       savings surplus was large.  Counter-

       intuitive behavior also occurred when

real interest rates skyrocketed from

2 percent in 1980 to 7 percent in 1982,

 (25)      even though national savings and

investments were roughly equal

throughout the period.  Clearly, real

interest rates respond to influences

other than the savings/investment

 (30)      nexus.  Indeed, real interest rates may

themselves influence swings in the

savings and investment rates.  As real

       interest rates shot up after 1979, for-

eign investors poured capital into the

 (35)
                   United States, the price of domestic

goods increased prohibitively abroad,

and the price of foreign-made goods

became lower in the United States.  As

      a result, domestic economic activity

 (40)     and the ability of businesses to save

and invest were restrained.

--------------------------------------------------------------------------------

Q35:

The passage is primarily concerned with

             

1. contrasting trends in two historical periods
2. presenting evidence that calls into question certain beliefs
3. explaining the reasons for a common phenomenon
4. criticizing evidence offered in support of a well-respected belief
5. comparing conflicting interpretations of a theory

Answer:

--------------------------------------------------------------------------------

Q36:

According to the passage, which of the following resulted from foreign investment in the United States after 1979?

             

1. An increase in real interest rates
2. A decrease in the savings rate of certain other nations
3. An increase in American investment abroad
4. An increase in the price of American goods abroad
5. A decrease in the price of domestic goods sold at home

Answer:

--------------------------------------------------------------------------------

Q37:

The author of the passage would be most likely to agree with which of the following statements regarding the economists mentioned in line 1?

             

1. Their beliefs are contradicted by certain economic phenomena that occurred in the United States during the 1960’s and the 1980’s.
2. Their theory fails to predict under what circumstances the prices of foreign and domestic goods are likely to increase.
3. They incorrectly identify the factors other than savings and investment rates that affect real interest rates.
4. Their belief is valid only for the United States economy and not necessarily for other national economies.
5. They overestimate the impact of the real interest rate on the national savings and investment rates.

bluegold998

7、三角形内切圆半径为r，求三角形周长。
  答案 6r（3的根号）。

等边三角形？

对，是等边三角形.原贴已修改，谢谢提醒。

[此贴子已经被作者于2006-11-11 20:15:49编辑过]