学进去-教育应平等而普惠
试题
类型:按要求填空
难度系数:0.85
所属科目:小学英语
写出同类词。
1.Our school is big and nice. There is a hall, a ____, a ____, some ____ and many ____ in it.
2.We can run, ____, ____ and ____ in the playground.
3.The children are cleaning in the classroom now. Eddie can clean the desks. Mary can clean the ____ and the ____. Danny can clean the ____ and the ____.
4.I have a big family. They are my grandfather, ____, ____, ____ and me.
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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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