2月18北京首战  710  Q:51  V:34  不是大牛分，但也达到700+的目标了

AA： 124. The following appeared in a memorandum from the owner of Carlo’s Clothing to the staff.
“Since Disc Depot, the music store on the next block, began a new radio advertising campaign last year, its business has grown dramatically, as evidenced by the large increase in foot traffic into the store. While the Disc Depot’s owners have apparently become wealthy enough to retire, profits at Carlo’s Clothing have remained stagnant for the past three years. In order to boost our sales and profits, we should therefore switch from newspaper advertising to frequent radio advertisements like those for Disc Depot.”

AI: 2. “It is unrealistic to expect individual nations to make, independently, the sacrifices necessary to conserve energy. International leadership and worldwide cooperation are essential if we expect to protect the world’s energy resources for future generations.”
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.
“指望单个国家独立地做出必要的牺牲来保存能源是不现实的。如果我们希望为下一代保护世界的能源资源，国际领导力量和全球性的公司是基本的。” 

数学：遇到了至少7—8道机经，尽量回忆一些没有的和需要注意的。抱歉，想起来的都是简单题

1.注意一下以前的机经：105.一个表格，柱状图，纵坐标销售量，横坐标天数。第一天：20；第二天：12；第三天：18；第四天10；第五天12；第六天6；问相邻两天，销售变化率最大的是哪个? 选第五天到第六天。
                                                                           

这个数据有些问题，虽然我也记不太清了，但确定第四天到第五天的变化率算出来是0.6，是最大的一个。

2.这道前人总结过的PS）一个大正三角形被里面一个倒立的小正三角形平均分成4部分，给出一个边长，求小三角形面积（有图）
   

解：一个正三角形，假设边长为x，其面积为x^2*sqrt(3)/4 ，小三角形的面积就应该是x^2*sqrt(3)/16.

但需要注意的是看清题目，题目给出的边长是8，
   我差一点选了4*根号3.但问题是求阴影部分面积，也就是中间三角形以外的三个三角形面积之和，应该再乘以3，得12*根号3.

3. 两个矩形 大矩形套小矩形

xy-(x-2z)(y-2z)=2xz+2yz-4z^2

4.PS) 1/(x^2+1)的取值范围

我是这么做的：  原式=(x^2+1-1)/(x^2+1)=1-1/(x^2+1)   大概选最后一个选项，就是小于等于一大于等于零的实数

5.一个cubic ，volume大概是4560cubic millimeters。问是多少cubic centimeters？（1millimeter=0.1centimeter）

直接乘以0.001就可以了

6.DS：给了个数轴，上面有a、b两点，a在左，b在右，问c是否在a、b中间。给了条件不难算

7.韦恩图的题。大意是三个领域ABC（有一个是Teaching，有一个是Research），问至少从事两个领域工作的人有多少？
   1）给出既从事A领域又从事B领域但不从事C领域工作的人数

2）有一半从事C的人也至少从事另外一个领域工作（可以算出准确人数）

最后选C

Verbal

RC：

1.短文章：关于妇女
    anti-slavery的问题，貌似机经上没有。大意是有的学者认为women在anti-slavery运动上做出了很大贡献，但又有学者指出她们的贡献有限，男性的贡献更大。然后主要是给出了人们忽视妇女贡献的原因，有first、moreover等指示词，比较容易。

另外三篇机经上的

2.大型动物 

3 removal dam的利弊  

4.一篇GWD上的原题，前几天的jj里有，我再把答案贴一下

Q35:   D
Which of the following most accurately describes the function of the last sentence in the passage (lines 35-40)?      A. To cite a situation in which the aggregate demand is more important than the distribution of demand among SKU’s
B. To refute an assertion about the side effects of flexible manufacturing
C. To illustrate an assertion about companies’ ability to forecast demand
D. To provide an example of ways in which companies address the difficulties of forecasting demand
E. To note an exception to the author’s assertion about distributing demand among SKU’s
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Q36:   E
The passage suggests which of the following about divided demand among a growing number of SKU’s? Even though manufacturers and retailers can forecast aggregate demand with some certainty,       A. It has increased the average lifetime of products.
B. It has resulted from retailer’s attempts to predict demand more accurately and avoid both understocks and overstocks.
C. It has decreased the use of flexible manufacturing by companies.
D. It has not increased the expense of keeping inventory of certain products.
E. It has not prevented companies from predicting aggregate demand with some certainty.
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Q37:   D

 According to the passage, which of the following has led to growth in the number of new products introduced in the United States each year?  The increased incidence in recent years of mismatches between production and demand seems ironic, since point-of-sale scanners have improved data on consumers’ buying patterns and since flexible manufacturing has enabled companies to 24 produce, cost-effectively, small quantities of goods. This type of manufacturing has greatly increased the number of new products introduced annually in the United States.          
A. Reduced average lifetime of products
B. Increased ability to forecast aggregate demand
C. More cost-effective ways of keeping inventory for products
D. Cost-effective production of small quantities of goods
E. Increased ability to divide demand among a number of SKU’s and to forecast how that demand will be distributed among those SKU’s

一点感想：1.Verbal一定要把握好pace，我就是做前十道题超时了，后面就特心慌，做的越来越没有信心，最后结果也不太好

                  3.不论在复习还是考试的过程中都要努力坚持！坚持到最后，一定会得到满意的结果！

4.一篇GWD上的原题，前几天的jj里有，我再把答案贴一下。。。

这里原文。。请问一下LZ那3题的答案是GWD里的吗？怎么觉得35的答案应该是C呢...

Companies that must determine well
in advance of the selling season how
many unites of a new product to manu-
Line facture often underproduce products
(5) that sell well and have overstocks of
others. The increased incidence in
recent years of mismatches between
production and demand seems ironic,
since point-of-sale scanners have
(10) improved data on consumers’ buying
Page 9 of 15
patterns and since flexible manufacturing
has enabled companies to
produce, cost-effectively, small
quantities of goods. This type of
(15) manufacturing has greatly increased
the number of new products introduced
annually in the United States. However,
frequent introductions of new products
have two problematic side effects. For
(20) one, they reduce the average lifetime of
products; more of them are neither at the
beginning of their life (when prediction
is difficult) or at the end of their life
(when keeping inventory is expen-
(25) sive because the products will soon
become obsolete). For another, as
new products proliferate, demand is
divided among a growing number of
stock-keeping units (SKU’s). Even
(30) though manufacturers and retailers can
forecast aggregate demand with some
certainty, forecasting accurately how
that demand will be distributed among
the many SKU’s they sell is difficult.
(35) For example, a company may be able
to estimate accurately the aggregate
number of shoes it will sell, but it may
be uncertain about which specific
types of shoes will sell more than
other types.