学进去-教育应平等而普惠
试题
类型:改错
难度系数:0.65
所属科目:小学英语
选出画线部分的错误并改正过来。
1. What(A) do (B)your (C)like to do in winter? ________________      
2. I (A)like the (B)rainy, but I (C)don’t like to get wet._____________
3. I (A)like to(B) skating on (C)the ice._________________
4. I like(A) walk (B)on the(C) snow._________________
5.(A)did Li Ming(B) learn to (C)skate?__________________
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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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