AA:The following appeared as part of an article in a weekly newsmagazine. “The country of Sacchar can best solve its current trade deficit problem by lowering the price of sugar, its primary export. Such an action would make Sacchar better able to compete for markets with other sugar-exporting countries. The sale of Sacchar’s sugar abroad would increase, and this increase would substantially reduce Sacchar’s trade deficit.”AI:“It is unrealistic to expect individual nations to make, independently, the sacrifices necessary to conserve energy. International leadership and worldwide cooperation are essential if we expect to protect the world’s energy resources for future generations.” 数学: 1,5个不同的正整数k, m, r, s, t, 和为80,t=40, 且k<m<r<s<t, 问中数的值最大可能是几? A)16 B)17 C)18 D)19 E)20 2,8本不同价格的书,从中取3本,问这3本书中包括最贵的2本书的概率? 答案我记不清了,不过反正是PS题,算出来就行啦 3,某地当月用电5,000千瓦时,其中off-back时段占40%,正常电价是$0.02每千瓦时,off-back时的电价是正常时的70%,求本月总电价? 答案我记不清了,不过很简单,关键是要看懂题目的意思 4,图1,正方形 ABEF, 三角形BCE和三角形EDF是等边三角形, 问角BGC是多少度?(题目的字母顺序可能有误,但是表示的角度是对的) A)40 B) 45 C) 50 D) 60 E) 75 5,DS题,如图2,问B是圆心吗? (1)AB=BC (2) AB=BD 6, 有一堵墙,长8 feet, 宽12 feet(也可能这两个数字颠倒了,不过不影响计算啦),上面用贴满正方形的白色和蓝色瓷砖装饰,如图3 所示,1ft=12in, 问这个墙上一共有多少块蓝色瓷砖?(图我画得不好,大家凑和着看啦,就是这个意思啦) 答案我记不清了,大家慢慢算好了,题目不难,就是太长,读起来费劲。 |