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学进去-教育应平等而普惠
试题
类型:填内容补全对话
难度系数:0.65
所属科目:小学英语

Mum: Let’s 1. the Christmas tree.
Children: OK.
Mum: I will put the 2. on the top (顶端).
Jenny: I will put the 3. on the tree.
Li Ming: Let me help you. What will you do, Danny?
Danny: I will put the balls on the tree.
Li Ming: Shall we put the stocking on the tree?
Jenny: No. I will put it at the end of my bed. Santa will come to my home. He will put a 4. in my stocking.
Danny: Can I have a present, too?
Mum: Sure. Come to my home tomorrow.
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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

用户名称
2019-09-19

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

用户名称
2019-09-19
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