my jj(转自Robert之家)

2002-12-24 08:49:11

Math:
全是jj 数学难度大幅提升不知为何只拿49
三个正整数M,N,T，且M*N*T不等于零；问题：is M^2*N^3*T^-4大于零？
1）N>M^2
2)N>T^-4

n is an integer, n is not a prime number, and n must be
a.the total of three prime numbers
b.the difference between two even numbers
c.the difference between one even number and one odd number
d.the product of...
e.the product of prime numbers. =>任何整数可表为质因子相乘之积

高速路与其它路各一半, 车在高速路上的平均速度为50，问全程的平均速度
（1）路程总长为150
（2）在非高速路上的速度为高速路上速度的百分之几

含有10个数字(1,3,5,7,9,11,13,15,17,19)的数列的标准方差问题。问方差是否不变？
1)抽掉2个数后，mean不变；
2)抽掉2个数后，sum为90

there are 30 graduate and undergraduate students select course, one is requirement, another is optional. How many undergradute in the class
1) . there are 16 graduate students select optional
2). Not any undergraduate students select optional

37，x^2 + 6x + q , what is the value of q ?
1). X^2 + 6x + q = x^2 + rx + r-2. some r is satisfied for this quotation. All variable X is satisfied for this
2) x^2 + 6x = Q = (x+m)(x+n) , some m and n is satisfied for this quotation. All variable X is satisfied for this

圆内接正方形面积为16。求正方形的一条边与其所对应的圆弧围成的弓形的面积。
【确定】2(pi-2)

x，y都是正数。x^3是否大于y
（1）根号x大于y
（2） x>y

X~2/根号x>1? 1.x>-1 2.X<1

K＝0.1－（0.1）^2 问x>0.05?
a. k>0.009/x b k<0.0009/x

10^50-74得出得数每个位上的数相加，求和。

有card共36张分4组，每组9张，每张用数字1－9来表达。抽出一张，问抽出的那张是多少
a抽出一张后，35张的合的unit digit是6
b 抽出一张后，35张牌的合是174

m 是75，98，140 的公倍数，问那个正确
(a)m为27的倍数 (b)m为49的倍数 (c)m大于14000

m(a) n-m=t-n (b) m+n=t

r*=1-1/r when r>1,ask when r>2, r*-(r*-1)=?

Signals were transmitted by arranging 3 varying colored flags vertically. What is the number of signals possible from 4 different colored flags

On XY plane. If a line goes through Point(A,5), Is the slope of the line <0?
a. Line goes through (0, -2)
b. Line goes through (5, A)

有16个球,4个红,3个蓝,其它是绿,如果连续从中拿两个出来,而且不放回去,问两次拿的球中一个红一个蓝的概率.

20立方厘米的显影剤到在1平方米的平面上,厚度是多少cm?

Verbal部分我成绩很差
虽然遇到rc遇到两篇 cr遇到2题 sc遇到几题
但考得还是很差所以不想写了对于verbal jj的用处开始存疑
但math JJ用处很大

考得不好所以也没有心写心得下次再战以后再来

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