数学JJ

1. y=(x^2-5x-14)/(x^2+6x+8),当x=8时，y=?, 答案：y=1/12，分解因式，约分得解。

2. n=(m-1)*(m+1), 以下哪个式子可以被3整除，我选的是n(n+1)(n-4),其他选项不记得了，但没有连续三项相连的。我是试了几个数代入排除的其他四个。

3. 不会画图，对不住大家了。就是一个圆，从圆心出发有一个长方形ABCD，长方形的宽AD即为圆的半径，长方形长边AB与圆交于E点，已知AB=12, DE=8，求BC. 答案：5

4.还有一个数轴的，从左到右给出两个点，c,d, 这两个点之间被等距离分了5份，问2如何通过c,d来表示。我选的是(b+4c)/5.

实在抱歉，印象比较深刻的就这么几道了，其他的题要不然都是jj,要不就是具简单，大家再看看。

作文考的是：

AA 72. The following appeared as part of a recommendation from the business manager of a department store. “Local clothing stores reported that their profits decreased, on average, for the three-month period between August 1 and October 31. Stores that sell products for the home reported that, on average, their profits increased during this same period. Clearly, consumers are choosing to buy products for their homes instead of clothing. To take advantage of this trend, we should reduce the size of our clothing departments and enlarge our home furnishings and household products departments.”

 专卖店的商务经理的备忘录： 本地服装店报告说从8月1号到10月31号的3个月里他们的平均利润下降。销售家庭用品的商店却报告同期的平均利润上升。很明显，顾客正选择为他们的家里购买用品而不是买衣物。为了利用这个趋势，我们应该缩减我们的服装部规模而扩大家庭装饰和家务用品部

AI “Schools should be responsible only for teaching academic skills and not for teaching ethical and social values.” 学校的责任只是教授学术能力而不是教授道德准则和社会价值观。

[此贴子已经被作者于2007-12-11 21:47:11编辑过]