5.5号 失望的一战 少量JJ

yujiiangreen

710，尴尬的分数！

昨天知道换题库了，特受打击！复习了三个月啊～不知道还有没有时间二战了，六月期末考试，暑假实习，唉。。今天时间没控制好，有好多题是瞎猜的，所以如果想做完的话大家一开始别做太慢，尤其没有机经的时候！

早就想回馈CD了，虽然记得题目不多，大家凑合看吧～

作文（谁说作文题库没换。。难道这就是人品？）

AA，从没见过的题，说一家公司生产的的cereal有75%vitamin K，比市场上同类产品的多。一个调查显示消费者很关心这个营养成分的含量。。。但sales figure却不怎么样。建议说重新设计包装，宣传这两种功效。

AI，100. “A nation must maintain a highly competitive educational system — a system in which students compete among themselves and against students from other countries — to ensure its own economic success.”

数学

1.PS: sum of 1^2,..., n^2, 能被4整除的n可能是多少？

选项有9，10，12，14，15--我选的12

(看来是做错了,应该是15,首先偶数的平方都可以被4整除,奇数项必须是偶数个,排除9,10,14--结果我就选错了,大家继续讨论~)

2. PS:a set of numbers （都大于一）中的数都能整除3^3*5^4*11^2*13^2和2^3*3^2*5^6，问这个set里有多少个数？（数字不一定准，但这两个数的最大公因数为3^2*5^4）

选项有2，8，10，14，18--我选14 

3. PS:1,...,n的和为S(n), 求S(2n)-S(n)?

(又想起几道!!)

4. PS:21,...,30 的 Reciprocal 的和应该在哪个范围?

我选的1/2~1/3

5. PS:一个公司的员工,64%工资小于50,000. 60%的大于40,000, 11%是43，000，3%是49，000，问media？

我选的43，000

6. DS:y=ax^2+bx+c 问是否与X轴相交?

(1)ab<0

(2)c=-3

选了E,不确定

我选S（n)+n^2

阅读

有一篇讲地震的，老观点认为地震都发生在地下40公里以上，因为深层温度高，压力大，如何如何

新观点说发现有好多地震发生在两百公里以下，提出两个解释，前面一个被否定了(感觉似曾相识的题啊）

后面的实在记不起来了～

逻辑题很怪，有两道都是一个人反驳另一个人的观点，题目问这个反驳有什么缺陷～

语法就不说了，我八成是掉到低分库里了，划线部分一个比一个短。。。

先说这么多吧。

[此贴子已经被作者于2009-5-5 23:28:27编辑过]

技安gz

不要气馁   这样你都能得到710  说明你实力还是很高的   如果不甘心 就再来一次  一定可以的

期待我能考到你的分数就满足了

KIWIUSST

顶

ningleena

710很高了

bloodlife

有一篇讲地震的，老观点认为地震都发生在地下40公里以上，因为深层温度高，压力大，如何如何

新观点说发现有好多地震发生在两百公里以下，提出两个解释，前面一个被否定了(感觉似曾相识的题啊）

后面的实在记不起来了～

逻辑题很怪，有两道都是一个人反驳另一个人的观点，题目问这个反驳有什么缺陷～

语法就不说了，我八成是掉到低分库里了，划线部分一个比一个短。。。

先说这么多吧。

In most earthquakes the Earth’s crust cracks like porcelain. Stress builds up until a fracture forms at a depth of a few kilometers and the crust slips to relieve the stress. Some earthquakes, however, take place hundreds of kilometers down in the Earth’s mantle, where high pressure makes rock so ductile that it flows instead of cracking, even under stress severe enough to deform it like putty. How can there be earthquakes at such depths?

That such deep events do occur has been accepted only since 1927, when the seismologist Kiyoo Wadati convincingly demonstrated their existence. Instead of comparing the arrival times of seismic waves at different locations, as earlier researchers had done, Wadati relied on a time difference between the arrival of primary (P) waves and the slower secondary (S) waves. Because P and S waves travel at different but fairly constant speeds, the interval between their arrivals increases in proportion to the distance from the earthquake focus, or initial rupture point. For most earthquakes, Wadati discovered, the interval was quite short near the epicenter; the point on the surface where shaking is strongest. For a few events, however, the delay was long even at the epicenter. Wadati saw a similar pattern when he analyzed data on the intensity of shaking. Most earthquakes had a small area of intense shaking, which weakened rapidly with increasing distance from the epicenter, but others were characterized by a lower peak intensity, felt over a broader area. Both the P-S intervals and the intensity patterns suggested two kinds of earthquakes: the more (45) common shallow events, in which the focus lay just under the epicenter, and deep events, with focus several hundred kilometers down.

The question remained: how can such quakes occur, given that mantle rock at a depth of more than 50 kilometers is too ductile to store enough stress to fracture? Wadati’s work suggested that deep events occur in areas (now called Wadati-Benioff zones), where one crustal plate is forced under another and descends into the mantle. The descending rock is substantially cooler than the surrounding mantle and hence is less ductile and much more liable to fracture.

是GWD这篇吗？

philyuewu

LS的不是一般的强！！

楼主，710很高了！

xxxyyyxxx

710   恩 很高了阿

先休息吧  复习了这么久。。。

加油哈

yujiiangreen

（我怎么不会引用呢？）

5L的好厉害，我说怎么那么熟悉呢？但是不一样啊，是有ductile这个词，但是两种解释和这篇的内容差挺远的～

markyourass

楼主好厉害~

instantreply

1.PS: sum of 1^2,..., n^2,能被4整除的n可能是多少？


    
選項有9，10，12，14，15--我選的12

請問這個有快的算法嗎? 不用真的一個一個展吧? 謝謝