* * “七乐彩”什么时候开奖（）A、一三五 B、二四六 C、一三六_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

* * “七乐彩”什么时候开奖（）

A、一三五

B、二四六

C、一三六

答案

参考答案：A

填空题

已知函数f（x）=x²+bx，若直线y=bx+1与直线x-y+2=0平行，则数列{

}的前n项和为S_n，则S₂₀₁₀的值为______．

选择题

Looking up, I saw that some children _____ rags were looking at me silently as I ate.

A．with

B．by

C．on

D．in