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数学实在是比prep和OC上的难太多了。。坑爹啊。。最后还没做完蒙了好几道
输血: 1. 一个正方形,里面内切4个相同的大圆,每个圆都跟另外两个圆及正方形相邻的两边相切(-0- 不会传图,大家自行想象哈),然后4个大圆中间有一个小圆,小圆与4个大圆全部相切。求:小圆半径与正方形边长的比
2. 坐标系里有直线l: ax+by=c, 另外有一条直线m与直线l垂直,且过点(2c,0),求直线m的表达式
AA:The following appeared in a presentation by the chief production manager of a machine parts manufacturing company at a management meeting: “Our factory in Cookville is our most advanced and efficient. It is capable of producing ten drill bits for each dollar of production costs, whereas none of our other factories can produce more than seven drill bits per dollar of production costs. Therefore, we can reduce our overall drill bit production costs by devoting the Cookville factory entirely to drill bit production. Since reducing the production costs of individual machine parts is the only way to achieve our larger goal of reducing our overall production costs, dedicating the Cookville factory entirely to drill bit production and shifting all other machine part production to our other factories will help us to attain that larger goal.”
AI: A nation should maintain a highly competitive educational system ---encourage the students to compete with each other and against students in other countries---- to ensure its own economic success
(从上月裤子里扒的,没换)
阅读: 有两篇看今天中午的狗都提到了,一个是蒸汽机的,一个是大中小firm哪个更有利于technology innovation的 另外还有一篇关于对人种称呼的还是什么的,脑子一团浆糊
记得比较清楚的是第三篇,关于美国financial market investment allocation的
第一段讲美国的capital allocation有好处,flexibility神马神马,但是与德国想比,投资者倾向于分散的短期的portfolio,导致stock market非常敏感,另外投资者只重视短期的盈利数据神马的,导致外部资本分配不均,没法更好流向更有潜力公司
第二段讲公司内部资本分配,由于外部投资者对于数据的重视,导致management也倾向于将资本投入可以quantify的东西,而忽略了longterm competitive investment例如intangible asset的投资
考完数学脑子里就一个词,坑爹啊= = 所以语法部分全部失忆中 |
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