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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:0.40
所属科目:小学英语
补全对话。
Ann: Hello. Is Tina there?
Tina: Hello, Ann. 1. is Tina.
Ann: Could I borrow your CD player tomorrow, please?
Tina: Sorry. It’s not a very good 2.. Could you speak more loudly, please?
Ann: Sure. I said, could I borrow your CD player, please? Mine is 3..
Tina: Of course. 4. do you want it?
Ann: Tomorrow if possible.
Tina: OK. I’ll 5. it to school in the morning.
Ann: Thanks! Bye.
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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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