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学进去-教育应平等而普惠
试题
类型:连线题
难度系数:0.65
所属科目:小学英语
读一读,将相应的句子连线
1. How do the pears smell?               A. It is an apple.
2. How do the pears taste?                 B. Yes, it is.
3. Smell this. What is it?                  C. They are sweet.
4. Is it an apple?                              D. They are nice.
5. Can you see a lemon?                    E. Yes, I can.
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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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