MATH JJ
1、一道我到现在还没想明白的题目：
Which of the following is the sum of possible value of X, for |x+2|=2|x-2|?
A. 4 B. 16/3 C. 20/3 D. 6 E…记不清了
大概就是这样一个题目，我按照三种不同分类计算可能的x值
a. x>=2时，x＝6；
b. -2<=x<2时，x=2/3;
c. x<=-2时，x＝6，不正确，应该是无解（考试时候，我就一直在算这个解，怎么会等于6，没想到它是
无解，现在也不知道对不对）；
那么加和应该等于 6＋(2/3)=20/3，考试时我没选这个，这道题我肯定做错了。不知道现在的解法对不对
。
2、兩個盒子。一個盒子內有30顆紫色彈珠、20顆黃色彈珠，另一各盒子內有15顆紫色、35顆黃色。現在
先選盒子， 再從選定的盒子抽出一顆彈珠，問抽到紫色彈珠的機率。
3、老JJ：退休占全部人员60%，其中20%参加了健康计划，健康计划的人占48%，问健康计划人里退休人员
所占比例60%*20%/48%=25%
4、44 < 333 - X<66, X是下列哪种可能：
I. 个位是3
II 十位是3
III 百位是3
A none of the above; B I; C I& II… 我选B I
5、一张相片长10，宽8，被加框（长和宽加的相同），框的面积是144，问框的宽度。
（10＋2x）(8+2x) -80 =144，得出x=3;
6、一个数列1，2，4。。。。Xn=2Xn-1, 问第16，17，18项的和。
等比数列 7（2）^15
7、 DS:两数中间是否包含0?
1.两数之和<0
2.两数之积<0 选B
8、 n是否能被2整除？
(1) n被8整除余6 ;
(2) n被3整除余2 ; ans: A
9、B的salary是L的11/14，B的salary比B,L两人salary之和少多少？
Ans: 56%
10、几个长方形(长为y，宽为x)+半圆形操场(x为直径)，问操场的总面积
(1) xy = 24 (2) x=3, y=8 ; Ans: B
11、某人M走前40公里速度为32公里每小时；后面的速度为36公里每小时。问后面一段又多长？
(1) 总共耗时5/2小时；(2) M总共走了85公里 ; Ans: D
12、DS：三角形PQR，问QR> R? A. QP=PR B.x不等于60度（x是PQ和PR的夹角）
Ans：E
13、六个人的committee，从中抽取三个人组成subcommittee的方法有多少种。
Ans：C63=20;
14、DS：1.001X是整数？A.X/1000是整数。B. 忘了
Ans：A
AWA
AA
112. The following appeared in a memo to the Saluda town council from the town’s business
manager.
“Research indicates that those who exercise regularly are hospitalized less than half as
often as those who don’t exercise. By providing a well-equipped gym for Saluda’s municipal
employees, we should be able to reduce the cost of our group health insurance coverage by
approximately 50% and thereby achieve a balanced town budget.”
AI
16. “Public buildings reveal much about the attitudes and values of the society that builds
them. Today’s new schools, courthouses, airports, and libraries, for example, reflect the
attitudes and values of today’s society.”
Discuss the extent to which you agree or disagree with the opinion stated above. Support
your views with reasons and/or examples from your own experience, observations, or reading.
Verbal
RC
1、 说药的毒性那一篇；
2、 天山4－Q5-Q7，文章和题目一模一样（可惜，我没有看天山）
CR
1、 海豚断奶那一道；我记得我答题时问的是削弱，按照JJ我匆匆忙忙就选了一个带wean的
答案，现在想想好像错了
2、 一种病A （记不清了）95％是由另外一种病B引起的，但是另外一种病B中，得A的少于95
％，问为什么？我选的是两种病同时存在的比例小于95％；
SC
GWD-12-Q23:
Antarctica receives more solar radiation than does any other place on Earth, yet the
temperatures are so cold and the ice cap is reflective, so that little polar ice melts
during the summer; otherwise, the water levels of the oceans would rise 250 feet and engulf
most of the world’s great cities.
A. is reflective, so that little polar ice melts during the summer; otherwise,
B. is so reflective that little of the polar ice melts during the summer; were it to do
so,
C. so reflective that little polar ice melts during the summer, or else
D. reflective, so that little of the polar ice melts during the summer, or
E. reflects so that little of the polar ice melts during the summer; if it did
其他的想不起来了，考完试，一路奔波回来，怕忘了JJ赶快写下来。。好累啊，要去歇歇了。
| 
