My name is Lili. This week, I sit in the middle(中间)of the classroom. Feifei is in front of me. Xiaoyong is beside me. Lingling is beside me, too. Last week, I was in front of Feifei. Feifei was between Xiaoyong and me. Lingling was beside me.
[[QOrDeR]]Lili sits in front of the classroom this week.(【小题2】This week, Feifei is in front of Lili. (
【小题3】Xiaoyong is beside Lili this week. (
【小题4】Last week, Lili was in front of Feifei. (
【小题5】Lingling was beside Lili last week. (
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同类型试题
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y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
![](http://static.xuejinqu.com/images/avatar.png)
![](http://static.xuejinqu.com/images/avatar.png)
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
![](http://static.xuejinqu.com/images/avatar.png)
![](http://static.xuejinqu.com/images/avatar.png)