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标题: [转帖]2月7,北美,机经。 [打印本页]

作者: smart    时间: 2005-2-12 20:10     标题: [转帖]2月7,北美,机经。

考的不好。650,m50, v28.

AA.

95. The following appeared as part of an article in the business section of a local newspaper.

`Hippocrene Plumbing Supply recently opened a wholesale outlet in the location once occupied by the Cumquat Caf¨¦. Hippocrene has apparently been quite successful there because it is planning to open a large outlet in a nearby city. But the Cumquat Caf¨¦, one year after moving to its new location, has seen its volume of business drop somewhat from the previous year's. Clearly, the former site is a better business location, and the Cumquat Caf¨¦ has made a mistake in moving to its new address.

AI

57. `Everywhere, it seems, there are clear and positive signs that people are becoming more respectful of one another's differences.~

In your opinion, how accurate is the view expressed above? Use reasons and/or examples from your own experience, observations, or reading to develop your position.

Math

1DS: 等腰三角形,一条边长6,一条边长6倍根号3。求三角形周长?

A 周长大于24

B 周长小于30

我选B

2PS 摄氏度与华氏度的转换公式,9/5x+32。摄氏度a小于等于b小于等于c小于等于d小于等于e。求华氏度的range

我的答案:9/5(e-a)+32

3PS A池子加水,每小时加k加仑。B池子减水,每小时减m加仑。A池现有水200加仑,B池现有水500加仑。同时A加水,B减水,多长时间后水一样多?in term of k and m

我的答案:300/(k+m)

4. DS f(x)=px5+qx3+rx, f(1).

Af(-1)=4

B: pqr<0

我的答案:A

5DS 1/XXX2,哪个最小?

AX>-1

BX<0

我的答案:C

6. DS: Deliver company delivers packages. A package, if less than 10 pounds, is charged for $20 per package. More than 10 pounds, $2 per pound. How much will be charged for two packages.

A: One package is charged for $20

B: The total weight of 2 package is 19.95(maybe 19.5, forget) pounds

我的答案:E

7. PS: 4x+22x=2200, x?

我的答案:199/2

8. PS: Roller, radium 24. Roll 270 degree. How far it goes?

我的答案:36pi

9. DSn能否被12整除。

An is a factor of 18 (也许是 n is a multiple of 18。没记住)

Bn is a multiple of 8

答案:E(考试时,选的CDamn!!!) 。如果考试遇到,注意差别吧。我不确定记得对不对。

9. 更正:DSn能否被12整除。

An is a multiple of 6

Bn is a multiple of 8

答案:C

10. PS 老题:一个list21个数,n是其中之一。n是另外20个数的平均数的4倍。问n21个数的和的比率。

我的答案:1/6

11. PS: 200个人。40人既有s又有p75人没有s也没有p。有s的人是有p的人的2倍。问有多少人只有s没有p?

我的答案:70

12. PS: A, B两地相距60公里。从A出发,以每小时24公里的速度走0.5 小时,然后以每小时50公里走完全程。求平均速度。

选项有 A. .., B. .., C. 38, D. 41, E. 43

我的答案:41

13. PS: 如图,AB垂直AD,角ABC=角ADC,求面积。

此主题相关图片如下: [attach]1401[/attach]

我的答案: 2+2*根号3

14. DS: 如图,平行四边形,求x?

此主题相关图片如下: [attach]1402[/attach]

A: y=60

B: x+z=240

我的答案:D

补充:

15. DS:有人募捐,找到n个donor,每个donor捐500。这n个donor,每人有找了n个donor,也是每个人捐500,求n。

A:n个donor的捐款额是总捐款额的1/16。

B:总捐款额为120,000。

我的答案:D(n=15)

本月JJ 3139 Verbal

状态太差,基本什么都没记住。

RC 第二篇,讲人类什么时候到的美洲大陆。

补充:

人类何时到达美洲(也许是南美洲),还有争议。考古的发现显示的最早时间的14,700年前。第一个假说是,通过陆路。因为独木舟(kayak)太小不太可能做跨海的交通工具。由于ice age,人类不可能于15,700年前通过陆路到达美洲(讲了原因“冰呀,海呀什么的”)。还讲了什么向南走,一个月可以走20里。多少年后到了南美。第二个假说是,通过海路。但没有证据。由于ice age结束后海平面升高,即使有证据也被淹没了。到海底去挖掘有不太可能。所以还是没有结论。

我觉得此文章不难。

RC 第三篇,讲discounter, 有个单词commission,考的时候不知道什么意思?文章没看懂。

补充:

讲deregulation后发生了什么,提到discounter, commission, full-service company, broker等等。(由于不知道discounter, commission什么意思,这个文章基本没太看懂。还乱了pace,坏了心态,导致失利)

对比了deregulation前的discounter和full-service company,deregulation后的discounter和full-service company。






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