11 月20日，北美，710， 少量jj

xiaoxiong101

今天刚考完，一战，M:49, V:38, Total 710.  比我的预计和平时炼习的成绩都高，所以很满足了。先写些机井，过些天再来写写感想。总之一句话，不要被平时的模考的成绩所吓倒。只要不紧张，正考有可能比平时成绩要高。


Argument: student protest about state cut school funding. (I don't know the number)
Issuse: Technology ultimatly sperates people instead of bring people together.

Math: 只遇到了2-3道JJ.
第一题就不会，花了5分钟，最好胡选了一个，题不一定准，大概是这样：
1 2X^2-2XY-y^2=0, then (X+Y)^2=?

2 DS: X and Y both are two digits number, what is tenth digit of product of X and Y?
     1: The tenth digit of X is 7 and tenth digit of Y is 4 (may is another number)
      2: The unit digit both X and Y is less than 4

3A car travel, the max distance is a (a is given) and min hours is b ( b is given), ask for wether speed > 30?

4 A list of number: 1/2, 1/4, ... ( the latter is half of the privous number, 后一位是前一位的一半），问19th is ?
    A> < 1/1,000,000 Bbetween 1/100,000 and 1/1,00,000 C:... (every answer is a range)

5 DS: 在一个坐标轴里, line L passes point (n,0), ask wether n >0>
   1: Line L passes point (x1, y1), x1<0, y1 >0
   2: Line L passes point (x2, y2), x2>0, y2>0


RC:
1: US healther provider and Mexican community.
2: Physic constant, string theory.
3: Ireland woman 选举权。
我发现有位写jj 跟我同一天,但在北京考的,2篇阅读都一样.

CR:  　遇到２到ＪＪ．
1) People's Coffee consumption is lower, the price of coffee is increased and revenu is increased also. How to explain this?
我选的是people switch from drinking cheaper coffee to more expansive ones. (答案只作参考,我的也不一定对)

2 One town, the pollution generated from cars is worse than the country average,  the plan is to checks the cars more often. What can make the plan doesn't work?
我选的是 because the pollution in the town, there are more people move out the town and commute to work everyday. (答案只作参考,我的也不一定对)

3There is a site dated 2,000 years ago, found there is grain on the stone. This can conclude, 人们在2，000 年前就开始在这里种地了。问assumption?

4 老JJ: Plankton, lack of iron 那道。


5 Critics: There is proposal to cut the movie production, because the move producer who can benefit from the movie production also go to protest about the plan, the conclusion is the plan to cut must be not good. How to weaken critics?
我选的是 movie producer wants to use the protest to bring publicity to his new movie.　(答案只作参考,我的也不一定对)

６：）老JJ:　mice and posion　那道
 

michelle423

楼主模考一般多少分啊,高了多少啊!

lichunyi

第一题就不会，花了5分钟，最好胡选了一个，题不一定准，大概是这样：
1 2X^2-2XY-y^2=0, then (X+Y)^2=?  

求表达式？ 值好象是解不出来的

2 DS: X and Y both are two digits number, what is tenth digit of product of X and Y?
     1: The tenth digit of X is 7 and tenth digit of Y is 4 (may is another number)
      2: The unit digit both X and Y is less than 4

E    71*42 72*42

4 A list of number: 1/2, 1/4, ... ( the latter is half of the privous number, 后一位是前一位的一半），问19th is ?
    A> < 1/1,000,000 Bbetween 1/100,000 and 1/1,00,000 C:... (every answer is a range)

大于1/1000000小于1/100000

5 DS: 在一个坐标轴里, line L passes point (n,0), ask wether n >0>
   1: Line L passes point (x1, y1), x1<0, y1 >0
   2: Line L passes point (x2, y2), x2>0, y2>0
E

xiaoxiong101

1 2X^2-2XY-y^2=0, then (X+Y)^2=?  

第一题答案是个表达式。 答案有Y^2, -2xy, etc.

super_pig

感谢分享~

pex066

以下是引用xiaoxiong101在2006-11-21 23:11:00的发言：

1 2X^2-2XY-y^2=0, then (X+Y)^2=?  

第一题答案是个表达式。 答案有Y^2, -2xy, etc.

好象只有当x,y都等于0的时候2X^2-2XY-y^2才等于0.选项里有没有0啊?

muzikfantasy

第一题是移项吗，(x+y)^2=2y^2+4xy-x^2, 有没有这个选项？