学进去-教育应平等而普惠
试题
类型:匹配题
难度系数:0.64
所属科目:小学英语
句子配对。
A                               B
(   )1. Is this your rubber?            A  Good morning, Miss Li.
(   )2. May I come in?                  B  No, thank you.
(   )3. This is for you.                C  I’m sorry.
(   )4. Would you like a cake?         D  No, it isn’t.
(   )5. Don’t run in the library.       E  It’s nice.
(   )6. Good morning, class.             F  Come in, please.
(   )7. Look at the blackboard.         G  Thank you.
(   )8. Look at my new cap.             H  OK.
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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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