图中方框内区域表示所有的化学反应，大圈内区域表示氧化还原反应，大圈外区域表示非氧化还原反应，其中A～D分别表示四种基本反应类型．请分别填出：

（1）若图中B圈表示化合反应，则C圈表示____ 反应（填反应所属的基本类型）

（2）属于区域3的化学反应是____

A．Cl₂+2KBr═Br₂+2KCl             

B．2NaHCO₃═Na₂CO₃+H₂O+CO₂↑

C．4Fe（OH）₂+O₂+2H₂O4Fe（OH）₃

D．CH₄+2O₂CO₂+2H₂O．

    Today I'd like to tell you something about two Chinese festivals.

    The first one is the Mid-Autumn Festival. It is a time for the 1. At night, the whole (全部的) family 2  delicious moon cakes (月饼), and the parents 3 the story of Chang'e. It's a traditional 4 story.

    The second (第二的) one is the Lantern Festival. 5  that day, we eat yuanxiao —a kind of rice dumpling. It's really 6 and I love it very much. We make many kinds of lanterns 7  for the festival. You can see a lot of pictures on 8 some are funny 9 The tiger is my favourite. Well, it likes eating much meat. But I don't want to 10 from it. I want to be healthy.

如图，已知菱形ABCD中，AB=6，∠B=60°．E是BC边上一动点，F是CD边上一动点，且BE=CF，连接AE、AF．

两曲线x﹣y=0，y=x²﹣2x所围成的图形的面积是____ 

①当l一定时，t是s的反比例函数；

②当l一定时，l是s的反比例函数；

③当s一定时，l是t的反比例函数．