学进去-教育应平等而普惠
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类型:填内容补全对话
难度系数:0.65
所属科目:小学英语

Mr Black t1. us English this y2.. He is a tall man. He l3. wearing a white shirt and black trousers. He s4. English very w5..We like his l6. very much. His home is near the school. S7. Mr Black walks to his home. He h8. two little sons. They look the same (一样). They often wear the same clothes, He l9. to see them and play w10. them. Mr Black calls the two boys Da Mao and Xiao Mao.

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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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