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感谢贴JJ的人，感谢整理的同学。回馈CD，特贴JJ。 Math 1. DS: there are 15 numbers in a set, is the arithmetic average greater than 36? (1) The sum of the number set is 550. (2) The median is greater than 36. 2. DS: what is the area region of an isosceles (等腰三角形) triangle? (1) The perimeter is 50. (2) One side line is 15. 3. DS: (General meaning, not accurate) There is one garden and four water faucet, can the four water faucet cover the whole garden? (1) The garden is 32 square centimeters. (2) The radius is 2 centimeters. 4. PS: (General meaning, not accurate) There are 1,200 respondents in a survey. And they are divided into three groups, such as A, B and C with percentage of 54%, 36% and 42% respectively (numbers may not be accurate). The percentage of A and B is 30%, what is the maximum number of C only without neither A nor B. 5. PS: if -9<x<-6, what is the descending order of x^(-3), x^(-2) and x^(-1). 6. PS: two consecutive questions on unary quadratic equation (ax^2+bx+c=0, a≠0). When does the equitation has no roots, and when does the equitation has only one root. Simple, just use b^2-4ac to calculate. 7. PS: my first question, I was stuck for a while. There are $10,000 invested in two separate investment schemes. One with simple interest of 5% and the other is with simple interest of 8%. At the end of the year, the investor get total of interest return of $710, how much did he invest in the first scheme? Please pay attention of the total interest return. Answer: $3,000. 8. DS: is x^2/|x|<1? (1) x>-1 (2) x<1 9. PS: a number have 7 different factors, which of the following can be this number? Answer: 64. Other JJ questions in my math section: (according to the 321-question version) Question #: 9、12、19、27、44、59、93、106、110、116、112 （X1-X2=5,000 and Y1-Y2= a certain number）、123 (wording changed: (2) if withdraw 600 in year n-1, then today’s investment is less than the actual amount at the end of year n. This rephrase made me very confused in the exam hall.)、131、132、148、153(wording changed: which option is less and how much less.)、174、181(miles per hour transferred to kilometers per second)、183(be careful, I don’t think the answer on the previous JJ is correct.)、217、275、278（重题）、287（重题）、300（重题） Verbal: RC: (1) photo shooting technology Question #1: what can be inferred: photographers didn’t mean to disappoint somebody Question #2: why only two people on the photo: others are in a motion (2) middle ear muscle Question #1: difference between human ear and bird ear: bird ear cannot protect from loud sound Question #2: why refer to train: to illustrate that the middle ear muscle contracts to protect human ears before talking Question #3: difference between middle ear muscle and other muscles: cannot control voluntarily (3) free trade policy Question #1: what can be suggested: democrats would oppose Question #2: what the standard historian would ignore: the alliance between multinational companies with branches overseas and the banks in1930s (4) bio fuel 第一段：随着油价上涨和能源稀缺，世界对生物能源的需求和兴趣又逐渐兴起了。比如大豆可能产生90%的油，某某东西能够产生300%的油等等。但是科学家预测海藻的油能够产生6,000%的油，而且能够在barren的地方的tank里面cultivate。 第二段：这些油产生的东西都有什么用，比如某某东西可以做动物饲料，某某怎么怎么样。 第三段：但是想要大规模商用这些海藻炼油方法还要克服一些困难。比如要注意温度，要stable；还要注意雨水不要进入；还要注意当地的海藻和植物在油表面繁殖产生竞争。 题目：（1）以下哪个是作者写作文章时候发生的事情？迷惑选项：海藻油的产量最高（科学家预测），选什么忘了，不好意思。 （2）根据文章最能推测出什么：海藻炼油只是实验性阶段，没有大规模商用。 （3）根据文章，与别的炼油方法相比，海藻油有什么优势？Algae oil doesn’t compete with other crop for cultivation lands. SC: (1) Appointed by XXX, YYY is the first black woman to be named as the first American representative to the United Nations. I picked: YYY appointed XXX to be the first black woman as the first American representative to the United Nations. (2) Some water pool, know as XXX, is the oldest and being scrutinized by scientist to do something and taking an inventory of YYY. 正确答案整个记不住了，但是选了跟taking并列的动词ing那一项。 (3) 老鼠看颜色跟戴某某眼睛的人一样，as do people with XXX glasses. (4) Not only to do, but also to do CR: (1) One nation, born rate is less than mortality rate. But more immigrants are coming, therefore the population will increase. How to evaluate? Choose the option considering the emigrants. (2) Government wants to simulate its own business and gives up the tax refund to its residents, because residents buy imported goods. Ask for assumption. Two confusing options: one states that the percentage of government purchasing of imported goods is less than its residents. The other is saying that the residents will use the tax refund not spent on domestic goods on imported goods. (3) The rural residents have 40% access to clean water in the past. However, the percentage increased to 70%. Ask for explanation. Rural residents are moving to cities for jobs. (4) 打广告的商家就是用较少的广告牌来打广告也是有self-interest的。同时由于需求在增长，所以广告牌的数量在较少，这样对广告商更加有利，因为…… 答案忘记了，sorry。 (5) 理论：国家经济总量等于所有产品和服务的综合 事实1：available labor force didn’t change 事实2：the value of products and services didn’t change 结论：经济总量没有变化 问：根据以上理论、事实和结论，下面哪个能够加强结论。答案：劳动力的平均工作时间没有改变。 | 
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发表于 2009-9-2 00:02:00
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