8－22上海
先贡献机经：
ai: most people would agree that buildings represent a valuable record of any society's past, but controversy arises when old buildings stand onground that modern planners feel could be better used for modern purposes.(孙远78)
aa:the construction last year of a shopping mall in downtown oak city was a mistake. since the mall has opened, a number of local businesses have closed, the downtown area suffers from an acute parking shortage, and arrests for crime and vagrancy have increased in the nearby oak city park. elm city should heed the example of the oak city mall and deny the application to build a shopping mall in elm city.（孙远103）
5.a,b2个cylinders,比较capacity
(1) a的高是b的1.5倍
(2) the ratio of a的高 to b的高是3：2
答案：e
6.the length of each altitude of a 等边△ is 根号3，求△周长
答案：6
7.3个人同样速度做事情花36小时，加一个同样的人，少用几小时？
答案：9hours
8.俩人做事, 共同完成要1hour, a 单独1.2hour, b单独?
答案：6hour
9. 有5个正整数, 已知3,4,5,5一个未知, 问range是否大于2?
a average小于 median
b median=4
答案：a
10. 说“prime sum”是sum of prime factors, e,g prime sum of 12 =2+3=5. ask wiich of the following has a prime sum greater than 35? 选项都是三位数
答案：c 620
11。both a and b are positive integers with three digits. the thousandth digit of a is 1 more than that of b, the tenth digit of a is 2 less than that of b, ask the difference between a/10－b/10?
答案：98
12.. 以下哪个选项是所有小于－|根号3－3|的选项中最大的？
（a）-3 （b）-2 （c）-1 （d）0 （e）1
答案：b
13. 1/[3+6/(9+x)] x不能等于？
答案：11
14. a,b2人吃饭，10％discount, a付的tip是original price的15％，b付的tip是price after discount的15％，已知a比b 多付$63,求original price.
verbal:
4篇阅读：m team 对来自火星的陨石的研究，发现了pha的物质，然后推断火星上曾有生命；
评价2个人关于18和19世纪women economic status的作品
african slave 对美国文化的影响的评论
