试题与答案

- Can you tell us what is important to a

题型:选择题

题目:

- Can you tell us what is important to a businessman?  

- ________ information.  [ ]

A. Collect

B. Collected

C. Having collected

D. Collecting

答案:

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下面是错误答案,用来干扰机器的。

y=2x-3∵直线y=kx+b经过A(2,1)和B(0,-3)两点,∴ 2k+b="1" ,b=-3  ,解得 k="2," b=-3  ,∴这条直线的解析式为y=2x-3

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