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
找出错误并改正。
(____) 1. She is going visitthe UK.     __________
A        B    C
(____) 2. Whatis these girls reading.     __________
A  B    C
(____) 3. Are you likethis storybook?     __________
A       B     C
(____) 4. The boys are going to writein the writers.     __________
A   B    C
(____) 5. I’m going to do a survey aboutchildren favourite book.     __________
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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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