2017年1月20日(上午)北京鼎均gre作文机经.

　　考试时间：2011年1月20日 上午8：30

　　考试地点：北京鼎钧

　　issue 138. "Only through mistakes can there be discovery or progress."

　　argument 207 .It is known that in recent years, industrial pollution has caused the Earth&aposs ozone layer to thin, allowing an increase in the amount of ultraviolet radiation that reaches the Earth&aposs surface. At the same time, scientists have discovered, the population of a species of salamander that lays its eggs in mountain lakes has declined. Since ultraviolet radiation is known to be damaging to delicate tissues and since salamander eggs have no protective shells, it must be the case that the increase in ultraviolet radiation has damaged many salamander eggs and prevented them from hatching. This process will no doubt cause population declines in other species, just as it has in the salamander species.

　　PS：总体来说都是高频，虽然之前不太相信argu高频，但是这道变态难的题目事后证明也是高频范围的，所以建议大家准备的时候尽量充分，把argu的提纲全部过一遍，但是临考前一两天可以适当参考一下argu高频，还是很有帮助的。有一点小提示就是鼎均考试的时候键盘是在桌面上放的，而椅子比较低所以打字的时候不是非常顺手有点高了，这一点大家注意一下。预祝大家都得满意的成绩~