学进去-教育应平等而普惠
试题
类型:仿写句子
难度系数:0.65
所属科目:小学英语
Example: Is this your book? √ Yes, it is. It᾽s my book.
Is this Mike᾽s car? x No, it isn᾽t. It isn᾽t his car.
1.Is this Danny᾽s ruler? √
______________________________________
2.Is it Jenny᾽s dog? x
______________________________________
3.Is this your school? √
______________________________________
4.Is it Steven᾽s pencil box? x
______________________________________
5.Is it Kim᾽s pencil? √
_______________________________________
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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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