学进去-教育应平等而普惠
试题
类型:连线题
难度系数:0.94
所属科目:小学英语
对话连线
(1) How long is the Great Wall?                    a. They go to the Great Wall by bus. 
(2) How do they go to the Great Wall ?               b. Danny feels tried and hungry.
(3) How does Danny feel on the way back?             c. About 6000 kilometers.
(4) Danny ! stop !                               d. Don’t be afraid. I can help you.
(5) help!               e. There are many cars and buses.
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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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