学进去-教育应平等而普惠
试题
类型:句型转换
难度系数:0.65
所属科目:小学英语
按要求完成下列各题。
1.It’s four o’clock. (对画线部分提问)
_________ _________ is it?
2.I have a green skirt. (改为一般疑问句)
_________ _________ have a green skirt?
3.They are my pants. (改为否定句)
They _________ my _________.
4.Those are pants. (改为一般疑问句)
_________ _________ pants?
5.Are these your pens? (作否定回答)
_________, they _________.
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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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