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

One day, a monkey r1. his bike near the r2.. This time he saw a lion under a tree. The lion ran at him. He was afraid and f3. into the river. He couldn’t swim. He s4.. The rabbit h5. him. He j6. into the river. The rabbit s7. to the monkey, but he couldn’t h8. him. Luckily, an elephant came here. He was very strong. He helped the rabbit and monkey. Three animals w9. very happy. They went to the elephant’s home. Then, three of them b10. good friends.

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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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