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1. 问一个数是不是质数P，这个数的开根号 不是整数
1） 所有大于根号P的factor只有P 本身
2） 所有小于根号P 的factor只有 1
【V2】P>1，P不是平方数，问P是不是质数
(A) P的大于根号P的因数只有P
(B) P的小于根号P的因数只有1
2. A1=-1 A
2=1对所有n≥ 3 An=An-1 - An-2 求前1000个数相加, 选项是 -1 0 23 6（这道是不是题目不对啊）
3. 问四边形ABCD是平行四边形么
（1）AD=BC,AB=CD
（2）角BAC=角ACD，角DAC=角ACB
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条件1.a+b=c
条件2.c=7
5. (3^20) * (33^22)最接近10的多少次方
计算机算的42，但是看到两个报答案的都是43.。。
6. xy plane上有8点，没有３个在同一条直线上, 求能组成多少个三角形
我算了56，有答案是83
7. 64个小立方体，只有一面涂蓝色，然后组成大正方体，问大正方体表面是蓝色的概率
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9. xy+yz+xz是偶还是奇，1。xyz是偶数 2.x+y+z是偶数我选了E
10.
圆上有10个点，求能组成多少个三角形我选了120
11. 描述了以下数列：1，11，111......问前40项相加的和的十位数字是多少？ 3
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E
13. 3 J N
8 K M
---------------------
N A J 3
上面两行相加，下面是结果，位数都是对应的）
有点记不清楚了，问K是多少
14. Sarah travels certain distance at a certainspeed in mph. Ask if her error of estimate of time is less than 0.5h
1. Error of estimate of distance is + - 10
2. Error of estimate of speed is + - 5.C OR D？
15. 一个三角形ABC，AB的重点是E，延长BC到D，连接DE交AC于F，F刚好是ED的中点，已知三角形AFD的面积是1，求三角形ABD的面积
4
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（1）c1/a2=一个已知的数字
（2）c2/a1=一个已知的数字E
17.
去年男员工M人，女员工W人，问今年加入新员工后男员工增加的比例时候比女员工增加的比例快？（1）男的加了M/2+X，女的加了W/2+X X>0(2)M>W
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京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号
发表于 2010-8-26 11:15:35
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