2月28号考试碰到的题。

qiezi1015

我这次考试也碰到一个DS题如下，求圆的半径是多少，给的条件是（1）BC=3 （2）AB=7.

[attachimg=222,209]85224[/attachimg]

细心看一下就知道，其实圆的半径就跟AB相等，所以（2）就sufficient了。这些都是些tricky的东西，如果硬解可能要花更多时间，不合算。

作文AA是下面这个
The following appeared as part of a newspaper editorial:
“Two years ago Nova High School began to use interactive computer instruction in three academic subjects. The school dropout rate declined immediately, and last year’s graduates have reported some impressive achievements in
College. In future budgets the school board should use a greater portion of the available funds to buy more computers, and all schools in the district should adopt interactive computer instruction throughout the curriculum.”
我好像写的不好。等过两天出来分数看看吧。
AI是这个
The overall quality of life in most societies has never been better than at the present time because of recent advancements in such areas as business and technology

prayerv

我想问为什么相等。。。

brendaqian

同问

qiezi1015

可能我没讲清楚，那个圆是四分之一个。所以AB是矩形的一个对角线，矩形的另一个对角线就是半径。

prayerv

可能我没讲清楚，那个圆是四分之一个。所以AB是矩形的一个对角线，矩形的另一个对角线就是半径。

-- by 会员 qiezi1015 (2011/3/4 10:30:53)

懂了！ 谢谢