作文: AA: Greentree's sales have been increasing but its profit has been declining. Greentree plan to lay off 10 employees and eliminate expensive products and free samples. Moreover, it plan to partner with Cabaret( a coffee cafe). Greentree think it will attract customers from the latter.(不知道是不是题库里的)
AI: individual nations will not sacrifice to conserve energy. international leadership and cooperation are needed in order to conserve energy. (题库里原题)
数学:碰到好多机经题,然后新题应该都不难,不然肯定会有印象
1.机器A单独生产要用x小时,B要用y小时,AB同时生产了3小时,A brokedown 了,B 完成剩下的工作要多长时间(4hours and ...minutes忘了是多少分钟,但是答案里含4hours 的就一个,4hours 确定)题中xy有具体数字的,反正都不难,常规题
4.书店 new book 和 used book. new book:13元/book,used book:5元/book。新书的gross profit 是成本的30%,旧书的gross profit 是成本的100%,一人它花67元买了新书和旧书,然后问,这个商店获得的gross profit 是多少?19.5