作文好像不是这个月机经的应该以前机经里看到过(我去找了下,找到了。所以原题复制下来了) Across town in the Park Hill district, the Thespian Theater, Pizzazz Pizza, and the Niblick Golf Club have all had business increases within the past two years. Capital Idea should therefore invest in the Roxy Playhouse, the Slice-o’-Pizza, and the Divot Golf Club, three new businesses in the Irongate district. As a condition, we should require them to participate in a special program: Any customer who patronizes two of the businesses will receive a substantial discount at the third. By motivating customers to patronize all three, we will thus contribute to the profitability of each and maximize our return. 数学: 做到了那个直角坐标系的 直角坐标系中,X+Y<10000,X<=8000,Y<=9000, 问图像是什么? (= =~图怎么放上来?我还特意去把机经里不全的部分补全了。。。)
(0.199)的n次方。千位小数是0 (1)n>4 (2)n<7 XY坐标轴里,问是否能判断直线A的斜率? (1) A 平行x 轴 (2) A与坐标轴交点(0.4)
存在set B,set A 是set B的真子集(不知道理解对不对,就是说A是B的一部分),问set B的range是否大于10?(条件还有好像,有点忘记。。) (1) set A的rang是10 (2)set B比set A 多2个数