AI: A powerful business leader has far more opportunity to influnce the course of a community or a nation than does any government official. AA: In the first four years that Montoya has served as mayor of the city of San Perdito,the population has decreased and the unemployment rate has increased.Two business have closed for each new business that has opened. Under Varro, who served as mayor for four years before Montoya, the unemployment rate decreased and the population increased. Clearly, the residents of San Perdito would be best served if they voted Montoya out of office and reelected Varro. Maths 1：a car takes 30 gallon per mile on high way and 25 gallon per mile in city lanes. given that it uses 6 gallons, and travel 170 miles. what is x?答案：50 2：0.99999999/1.0001 - 0.99999991/1.0003=? 答案:2*10^(-4)。 3：完成一个任务A需要15小时，B需要18小时，A先干了6小时，然后A和B同时干3小时，问剩余的工作B单独干还需要多少
小时？答案：4小时12分钟 4：The infinite sequence a1, a2,…, an,… is such that a1 = 2, a2 = -3, a3 = 5, a4 = -1, and an = an-4 for n > 4. What is the sum of the first 97 terms of the sequence答案：74 5：三角形三个内角x y z。w是x的外角。y=? 有图的
(1) w=70+z.
(2) x+z=110.答案：D 6：DS: 平行四边形的一个公园 A沿着长对角线走 B沿着短对角线走. 好像是一段时间A走的是不是B的1.5倍。
(1) 平行四边形一边2公里一边1公里长
（2) 平行四边形的内角有一个是60度 7：一个人工资6000刀，净工资是它的70%，税是它的21%，问税是净工资的百分之多少？答案：30% 8：which of the following fraction has decimal equavelent to what is terminating decimal?
a,10/189, b,39/182, other two都是无穷小数, and e,25/144.答案E 9：2^x+2^x+2^x+2^x=2^n, 问用n表示x，x=n-2 10：n 能被3整除吗? （1）. n被2除, 余1; （2）. n+1被3除, 余2。答案B 11：求(1+B/100)^2的值 （1）. B小于等于3, 大于等于1 （2）. 10(1+B/100)^2的十分位数字等于(1+B/100)^2千分位的数字。答案：D Verbal 就不说什么了，我比较烂 RC： 非洲和欧洲音乐比较的；为保护野生动物, 在野外广泛撒布某口服疫苗；地理位置和公司股价关系的； | 
