400-820-0859篇3：GMAT议论文
GMAT精选议论文
为了方便广大考生更好的复习，综合整理了备考资料，以供各位考生考试复习参考,希望对考生复习有所帮助。
The following was excerpted from the speech of a spokesperson for Synthetic Farm Products, Inc.
Many farmers who invested in the equipment needed to make the switch from synthetic to organic fertilizers and pesticides feel that it would be too expensive to resume synthetic farming at this point. But studies of farmers who switched to organic farming last year indicate that their current crop yields are lower. Hence their purchase of organic farming equipment, a relatively minor investment compared to the losses that would result from continued lower crop yields, cannot justify persisting on an unwise course. And the choice to farm organically is financially unwise, given that it was motivated by environmental rather than economic concerns.
Discuss how well reasoned... etc.
This speaker argues that farmers who invested in organic farming equipment should resume synthetic farming because it is financially unwise to continue organic farming. The speaker cites studies showing that farmers who switched to organic farming last year had tower crop yields. Based on these studies, the speaker concludes that the relatively inexpensive investment in organic farming equipment cannot justify continuing to farm organically. The speaker also claims that continuing to farm organically is financially unwise because it is motivated by environmental, not economic, concerns. The argument suffers from three problems.
篇4：GMAT数学公式
想要在GMAT数学考试中发挥出更好的水平，考生除具备扎实的GMAT数学基础知识外，还需要掌握一些常用的数学公式。在GMAT数学考试中常用的数学公式有哪些呢?
只是一些比较常用的gmat数学公式，同时也适用于GRE考试。
=a2-b2 2=a2+2ab+b2 2=a2-2ab+b2
3=a3+3a2b+3ab2+b3 3=a3-3a2b+3ab2-b3
一元二次方程ax2+bx+c=0的解x?,?=/2a
Simple Interest:利息Interest=本金Principal?时间Time?利率Rate。
Compound Interest:A=n;A为本利和，P为本金,R为利率,n为期数。
Discount=Cost?Rate of Discount Distance=Speed?Time
Pythagorean Theorem:直角三角形两直角边的平方和等于斜边 的平方。
多变形的内角和：180，总对角线数为n/2条，从每一个顶点引出的对角线数为条;式中：n为多边形的边数
平面直角坐标系中，A和B是任意两点，C是线段AB的中点，则x=/2,,y=/2,线段AB两端点间的距离=
平面图形的周长和面积：
Perimeter Area
Triangle 三边之和 /2
Square 边长4 边长的平方
Rectangle 2 长宽
[GMAT数学必备公式归纳]
篇5：GMAT精选议论文
为了方便广大考生更好的复习，综合整理了备考资料，以供各位考生考试复习参考,希望对考生复习有所帮助。
The following was excerpted from the speech of a spokesperson for Synthetic Farm Products, Inc.
Many farmers who invested in the equipment needed to make the switch from synthetic to organic fertilizers and pesticides feel that it would be too expensive to resume synthetic farming at this point. But studies of farmers who switched to organic farming last year indicate that their current crop yields are lower. Hence their purchase of organic farming equipment, a relatively minor investment compared to the losses that would result from continued lower crop yields, cannot justify persisting on an unwise course. And the choice to farm organically is financially unwise, given that it was motivated by environmental rather than economic concerns.
Discuss how well reasoned... etc.
This speaker argues that farmers who invested in organic farming equipment should resume synthetic farming because it is financially unwise to continue organic farming. The speaker cites studies showing that farmers who switched to organic farming last year had tower crop yields. Based on these studies, the speaker concludes that the relatively inexpensive investment in organic farming equipment cannot justify continuing to farm organically. The speaker also claims that continuing to farm organically is financially unwise because it is motivated by environmental, not economic, concerns. The argument suffers from three problems.
