已知二次函数y=ax²+bx+c（a≠0）的图象如图，则下列结论正确的有（　　）个．

①abc＜0，②2a+b=0，③a-b+c＞0，④4a+2b+c＞0，⑤b＞-2c．

有关我国农业分布的叙述，正确的是（　　）

从方框中选择恰当的词填空, 完成对话。每词限用一次。

A: ____ you have a good time last weekend?

B: No, it was very ____.

A: ____ did you do?

B: I stayed at home and ____ English.

A: ____？

B: Because l will have an English ____ next Monday.  

A: Really? Don't ____. You are good at English.

B: Yes, but I didn't go to school last week. I was ____ ill.  

A: Oh, I'm ____ to hear that. I hope you will be ____.

①我国的植树节是每年的____月____日。

②邓小平是我国伟大的无产阶级革命家、____家、____家、____家。他创立了邓小平理论，他所倡导的____及“____”方针，改变了20世纪后期的中国，也影响了世界。