贰流早上考的，放狗，感谢CD

chivalry_20

作文：
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.”
Discuss how well reasoned . . .etc.
另一篇是
“Employees should keep their private lives and personal activities as separate as possible from the workplace.”

数学:
1 订报纸 订A的人里有1/5订了B，订B的人有1/4订了A，问的好像是订B的人占订两种报纸的人的比例 我选的1/2
2 买水果 苹果40块 橘子60块 一个人买了十个水果 平均每个水果花了56 问他如果要达到平均52的话 要放回去多少个橘子
这道题我想了半天题目问的到底是什么 到底要不要保持10个水果不变 平均56的话 是8个橘子 2个苹果 最后我觉得是放回5个 剩2个苹果和3个橘子

woaihenglia

跪谢，顺便求阁下数学2道题的解法，跪求。谢谢

zonghualiu

LZ可以对照一下数学JJ确认其他题， 另回忆阅读吧。

vcheung

感谢LZ分享,麻烦再回忆多点吧~

lx0604

做下第一题:
1 订报纸 订A的人里有1/5订了B，订B的人有1/4订了A，问的好像是订B的人占订两种报纸的人的比例 我选的1/2
设AB都订的人是x,那么只订A的是4x,只订B的是3X. 加起来是8x,就是所有人
所以答案是4/8也就是1/2. 没错吧?

calvin1983

2 :  60X+40Y=560  X+Y=10
X=8 Y=2

60Z+2*40=52*(2+Z)  Z=3
X-Z=5

miumiu770

谢谢LZ分享

第二题数学 可以设放回X个橘子 然后（56*10-60X）/（10-X）=52 可得X=5

lilac911

求越毒和逻辑狗狗