学进去-教育应平等而普惠
试题
类型:填空题
难度系数:0.65
所属科目:小学英语
用所给词的适当形式填空。
1. What are they going __________ (buy)?
2. She’s on the __________ (one) floor.
3. They are going to make __________ (poster).
4. Alice is __________ (read) a storybook.
5. I’m going to visit __________ (this) places.
6. There are many __________ (magazine).
7. He gives __________ (I) five apple pies.
8. __________ (read) is fun.
9. What __________ (be) the newspaper about?
10. They are __________ (buy) books.
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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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