在职，北美，12月2日，710，微量机经+感想

susie810

不需要知道是否为直角的吧

上下底应该平行的，两个三角形的面积比就是上底和下底的边长比，因为它们的高相同

所以４/６＝１０/x    so x=15

then 15=10=25

梯形面积为２５．请指教

jinghezhao

LZ，  Ai 是不是下面这个？

“Too many people think only about getting results. The key to success, however, is to focus on the specific task at hand and not to worry about results.”

多谢！

cyyp

以下是引用susie810在2006-12-4 21:22:00的发言：

不需要知道是否为直角的吧

上下底应该平行的，两个三角形的面积比就是上底和下底的边长比，因为它们的高相同

所以４/６＝１０/x    so x=15

then 15=10=25

梯形面积为２５．请指教

正解

muscleman

是不需要直角哈，一时糊涂。

tuoxie

To pplcc: 阅读其实不难，因为记不住原题，怕误导大家。有一篇关于宇宙形成初期，各种物理元素形成的阅读，有些生词。关于质子，中子，电子等等，内容不难，不认识的单词其实也不是很影响作题。不知道是否有高人能够告诉大家宇宙形成初期（big bang）的时候，什么物理元素最先形成，什么之后形成等等。具体内容确实记不住了。
To muscleman: 梯形不是直角的
To jnghezhao: 是的，就是这篇AI

jinghezhao

54. The following appeared in an Excelsior Company memorandum.

“The Excelsior Company plans to introduce its own brand of coffee. Since coffee is an expensive food item, and since there are already many established brands of coffee, the best way to gain customers for the Excelsior brand is to do what Superior, the leading coffee company, did when it introduced the newest brand in its line of coffees: conduct a temporary sales promotion that offers free samples, price reductions, and discount coupons for the new brand.”

Discuss how well reasoned... etc.

LZ AWA是否是上面这篇？多谢

kingstone79

CR 是这道吗？

GWD-1-Q3:

A product that represents a clear technological advance over competing products can generally command a high price.  Because technological advances tend to be quickly surpassed and companies want to make large profits while they still can, many companies charge the greatest price the market will bear when they have such a product.  But large profits on the mew product will give competitors a strong incentive to quickly match the mew product’s capabilities.  Consequently, the strategy to maximize overall profit from a new product is to charge less than the greatest possible price.

 

In the argument above, the two portions in boldface play which of the following roles?

 

1. The first is an assumption that forms the basis for a course of action that the argument criticizes; the second presents the course of action endorsed by the argument.

2. The first is a consideration raised to explain the appeal of a certain strategy; the second is a consideration raised to call into question the wisdom of adopting that strategy.

3. The first is an assumption that has been used to justify a certain strategy; the second is a consideration that is used to cast doubt on that assumption.

4. The first is a consideration raised in support of a strategy the argument endorses; the second presents grounds in support of that consideration.

5. The first is a consideration raised to show that adopting a certain strategy is unlikely to achieve the intended effect; the second is presented to explain the appeal of that strategy.

li_hanhan

梯形面积为25.先求三角形高=5, 其实也就是梯形高.

如果都是这种数学就好了. 其他比如POSSIBILITY之类的题还记得吗?

谢谢呀~~~~~~GREAT TO SHARE

liubin1987

那三角形的面积不是15吗? 通过右边的三角形可以算出高是5,然后再代到左边的三角形中就搞定了,因为是梯形

liubin1987

大爆炸?好象是H和He吧