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
填空,选出正确的单词。 
(_______) 1. Look (at, in) this building.  
(_______) 2. (Don’t, Can) call it a small classroom. 
(_______) 3. This (is, are) our library.   
(_______) 4.There (is, are) a meeting room over there.
(_______) 5. Welcome (to, for) our school.
(_______) 6. (Do, Does) you often come to the library.
(_______) 7. There (is, are) many books in the library.     
(_______) 8. That (is, are) great.
(_______) 9. We often borrow some book (from, to) our library.
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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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