12.18北京裸奔数学50

1，6个非零整数，在-12和12之间，inclusive, sum of this 6 integers is positive, 最多多少个负数。答案4

2。车装球的题

3。DS：X^3*Y^4=Z  求X

(1) Y=2(2)Z=2000

答案B

4DS：a 和b都是正数，（a^-1 + b^-1)^-1 > (a^-1*b^-1)^-1?

（1）a=2b (2) a+b>1

答案B

5下列那个数有7个正整数因子，包括1和它本身

答案是64

6 DS:f(x)=x^2, f(f(a)) / f(a) 是整数吗？

(1)a 是正数 （2) a 是偶数

答案 A

7 DS: AD?

(1)AB=20  (2)BD=16

 答案是D

8 (x+4)(x-1)+(x-1)(x+2)=0,

 答案是什么， a 有两个solution, 其中3包括在里面

b有两个solution,其中1包括在里面

c有三个solution, 其中？包括在里面

答案是B

今天就记得这么多，总之全裸没办法，申学校不能再耽误了，大家加油

awa :issue

27. “A company’s long-term success is primarily dependent on the job satisfaction and the job security felt by the company’s employees.”

argument:

B8. 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.”

27. “A company’s long-term success is primarily dependent on the job satisfaction and the job security felt by the company’s employees.”

argument:

B8. 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.”