11.13 北美

fuente

AA:

The following appeared as part of a plan proposed by an executive of the Easy Credit Company to the president.

“The Easy Credit Company would gain an advantage over competing credit card services if we were to donate a portion of the proceeds from the use of our cards to a well-known environmental organization in exchange for the use of its symbol or logo on our card. Since a recent poll shows that a large percentage of the public is concerned about environmental issues, this policy would attract new customers, increase use among existing customers, and enable us to charge interest rates that are higher than the lowest ones available.”

 

AI：

constant innovation and change within an organization are as likely to damage the organization as they are to improve it.

 

阅读

 

1.二氧化碳排放

2.海豹哺乳

3.围棋比赛规则.   

 补充：最后一段举了一个例子(大写人名)，问这个例子的作用，说明了什么。

 

数学

 

1.一个数在20-60之间
        ，问这个数是奇数吗？

(1) 个位和十位都是质数

        (2) 个位和十位的和是质数

2.     一些人参加一个会，每人交$150, 如果吃午餐，一个人多交$30，吃午餐的比不吃午餐的多**人，会议一共收入$*****(是一个挺大的数) 问多少人参加这个会？

3.     估计一个长方形的东西长为100，宽为50，实际测量的长比预测的长短15%，实际测量的宽比预计的短15%, 预计的面积为5000，问实际的面积比预计的面积少百分之几？

4.     x△y=ax+by  a，b 为常数，问 8△2=？

           （1）4 △ 1=**（给了一个数）

   （2）2 △ 2=**（给了另一个一个数）

5. 一个东西的体积是4290 cubic Millimeter, 1 Millimeter = 0.1 Centimeter，问这个东西体积  是多少Centimeter？

6. 某个小区，每户居民一个小时的用水量为x，这个小区所有居民在24小时的用水量为y，  问这个小区有多少户居民(用x和 y表示)？

7.  S1＝1， S2=2, S3=2^1, Sn=Sn-1^ Sn-2,问S6/S5

8. 10刀的gift card去加油，普通油1.22/g，高级油1.32，加普通的比高级的能多加多少

9.一个鸟飞行平均速度18米/秒，飞越一个湖，问它飞行距离是否小于21千米，(1)飞了less than 20 min, (2)飞了less than 0.4h

恺撒的荣耀

谢谢分享！