[转帖]北美jj

maryland

AI: 24 A powerful business leader has far more opportunity to influence the course of a community or a nation than does any government official.
AA: 120 Because travel from our country to foreign countries has increased dramatically in recent years, our next project should be a “world tour “ theme park with replicas of famous foreign buildings, rides that have international themes, and refreshment stands serving only foods from the country represented by the nearest ride. The best location would be near our capital city, which has large percentages of international residents and of children under the age of 16. Given the advantages of this site and the growing interest in foreign countries, the “world tour “theme park should be as successful as our space –travel theme park, where attendance has increased tenfold over the past decade.

Math:
数学j j 非常有用，我遇到了很多，现补充一些：
1 有一东东18个，平均长为12feet, 现增加n 个每个9feet的此东东，增加后平均长为10， 求n.
2 一长方形，告诉面积，且一条对角线的长为一边的2倍，求此边的长。
3 一组人，female 15, male 12, 组成一个女3男2 的committee, 问有多少种不同的arrangement?（数字不一定准确）
4 DS 一水池，长宽都告诉，灌水constant rate ，求此水池体积（还是高，忘了）？
（1） 7小时灌满
（2） 每小时水面上升1feet.(数字不对，不过不影响)

阅读有鸟飞行起源那道
逻辑有奶牛细菌那道。