一个九边形…各边延长，然后各自相交……形成周围一圈三角形……题目中貌似说了这些三角形都是等腰三角形了……求红色那里的那个角……我是先用（9-2）*180/9 算出每个内角的读书 然后用180度减 算出等腰三角形的底角……然后……三角形内角和……得出结果100度 是A选项…[attachimg=571,441]81740[/attachimg]
2 还有一道题 XY坐标轴上 有三个点（-2,3） （x,y）这是已知的只是我忘了 （-6，-6） 反正就是三个点，分别在第一二四象限，问三点连成的三角形的面积。给的三点直观上看不出垂直关系…… 我不记得点到直线的距离公式（所以你们要记一下这个公式），也没有时间算有没有垂直的两个边，是随便懵的~~选项 都是根号下几十几乘以根号下几十几（也有一百多）的数字
3 前24个正整数相乘 会有10的几次方 的因子 因为前24个正整数里 2有很多 但只有4个5 所以我选的是4。
4 一道简单的题： 一个村子还是地区还是什么的 反正是个范围 男人占总人数的 40% ； 就业的男人占就业总人数的 20% 这两数字的比 为 M ； N就是对应女人的 这个比率 然后问M/N 等于多少…… 算出来是 6 TO 1
5 一个数列 Ai=200+0.2乘以Ai-1 A1=0 问 前39个相加的结果的范围 A 200-230 B 240-250 C 250-260…………我算了几个数 挺接近 250的 但是说实话 后面的就太小了我不知道能不能超越250 所以我蒙的是 250-260（再次声明，LZ是数学白痴，不要鄙视我的笨蛋方法哈）
6 一个列表列出了 一个店里面一种商品的价格变化 （竟然每天都变） 就是当天价格减去前一天的价格。 问如果周一前面的周日价格为x 那么上周的平均价格是多少……选E (5x+5z+4y-3p-2w+d)/5
[attachimg=681,480]81751[/attachimg]
7 能否求出ab/bc的值
(1) 我忘了 对不起……
（2)a/b=200
我选E 因为好想两个条件都考虑进去都算不出来
阅读：
（不到一屏）有一篇阅读是将OZONE可以帮助减少污染什么的。头一句先介绍了一下臭氧~~然后第二段说说现在好多工厂要治理污染，有两种方法。第一种是什么（忘了），然后评价说不好，也有说原因。 第二种是什么，也说不行，说了原因。（这种方法只有在scale很小的时候才行，大了就不管用了（有题噢 简单~））我感觉最后是说了一下臭氧可以怎么污染（看的时候感觉挺清楚但是做到后面的结构题 发现没有一个选项有提到最后有了一种好的方法的）
第一题 是问 作者的primary concern
第二题是细节题 就是问第二种方法怎么不好了 就是只适用与污染scale很小的（大概就这意思）
第三题是问全文结构 （我选的是 评价了几种污染治理方法，如果这个选项后面又加一个提出臭氧治理的观念 那我就确定选它了，主要是别的我都觉得还不如这个选项。LZ英语水平不行，赶上换题库分数也没有上700 所以大家慎重参考~ ）
其他题……不记得了……
有一个GWD原题~~
T-9-Q20-Q23：GWD-13-34~37
A small number of the forest species of lepidoptera (moths and butterflies, which exist as caterpillars during most of their life cycle) exhibit regularly recurring patterns of population growth and decline—such fluctuations in population are known as population cycles.Although many different variables influence population levels, a regular pattern such as a population cycle seems to imply a dominant, driving force.Identification of that driving force, however, has proved surprisingly elusive despite considerable research. The common approach of studying causes of population cycles by measuring the mortality caused by different agents, such as predatory birds or parasites, has been unproductive in the case of lepidoptera.Moreover, population ecologists’ attempts to alter cycles by changing the caterpillars’ habitat and by reducing caterpillar (25) populations have not succeeded. In short, the evidence implies that these insect populations, if not self-regulating, may at least be regulated by an agent more intimately connected with the insect than are predatory birds or parasites. (30)
Recent work suggests that this agent may be a virus.For many years, viral disease had been reported in declining populations of caterpillars, but population ecologists had usually considered viral disease to have contributed to the decline once it was underway rather than to have initiated it. The recent work has been made possible by new techniques of molecular biology that allow viral DNA to be detected at low concentrations in the environment.Nuclear polyhedrosis viruses are hypothesized to be the driving force behind population cycles in lepidoptera in part because the viruses themselves follow an infectious cycle in which, if protected from direct sun light, they may remain virulent for many years in the environment, embedded in durable crystals of polyhedrin protein. Once ingested by a caterpillar, the crystals dissolve, releasing the virus to infect the insect’s cells. Late in the course of the infection, millions of new virus particles are formed and enclosed in polyhedron crystals. These crystals reenter the environment after the insect dies and decomposes, thus becoming available to infect other caterpillars.
One of the attractions of this hypothesis is its broad applicability. Remarkably, despite significant differences in habitat and behavior, many species of lepidoptera have population cycles of similar length, between eight and eleven years.Nuclear polyhedrosis viral infection is one factor these disparate species share.
---------------------------------------------------------------
T-9-20:GWD-13-34:
Which of the following, if true, would most weaken the author’s conclusion in lines 25-30?
A.New research reveals that the number of species of birds and parasites that prey on lepidoptera has dropped significantly in recent years.
B.New experiments in which the habitats of lepidoptera are altered in previously untried ways result in the shortening of lepidoptera population cycles.
C.Recent experiments have revealed that the nuclear polyhedrosis virus is present in a number of predators and parasites of lepidoptera.
D.Differences among the habitats of lepidoptera species make it difficult to assess the effects of weather on lepidoptera population cycles.
E.Viral disease is typically observed in a large proportion of the lepidoptera population.
--------------------------------------------------------------------
T-9-21:GWD-13-35:
It can be inferred from the passage that the mortality caused by agents such as predatory birds or parasites was measured in an attempt to
A.develop an explanation for the existence of lepidoptera population cycles
B.identify behavioral factors in lepidoptera that affect survival rates
C.identify possible methods for controlling lepidoptera population growth
D.provide evidence that lepidoptera populations are self-regulating
E.determine the life stages of lepidoptera at which mortality rates are highest
--------------------------------------------------------------------
T-9-22:GWD-13-36:
The primary purpose of the passage is to
A.describe the development of new techniques that may help to determine the driving force behind population cycles in Lepidoptera
B.present evidence that refutes a particular theory about the driving force behind population cycles in Lepidoptera
C.present a hypothesis about the driving force behind population cycles in Lepidoptera
D.describe the fluctuating patterns of population cycles in Lepidoptera
E.question the idea that a single driving force is behind population cycles in Lepidoptera
--------------------------------------------------------------------
T-9-23:GWD-13-37:
According to the passage, before the discovery of new techniques for detecting viral DNA, population ecologists believed that viral diseases
A.were not widely prevalent among insect populations generally
B.affected only the caterpillar life stage of lepidoptera
C.were the driving force behind lepidoptera population cycles
D.attacked already declining caterpillar populations
E.infected birds and parasites that prey on various species of lepidoptera
作文： ISSUE公民有义务不遵守他们认为不公平的法律。
ARGUMENT是：
一个信用卡公司的EXECUTIVE 说 他们应该在卡上搞上一个环境组织的LOGO 因为越来越多的人关心环境，这样的话 就可以ENABLE这个公司提高INTEREST RATE。 | 
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号
发表于 2010-10-22 22:12:38
收藏
收藏
楼主