学进去-教育应平等而普惠
试题
类型:改错
难度系数:0.65
所属科目:小学英语
改错
1. (______) He likeeggsvery much.________  
A  B    C
2. (______) There weren’tsomecars.      ______
A   B   C                                     
3. (______Thank you for helpme. ________ 
A    B    C
4. (______) My grandma dance in lots ofcities_______ 
A          B  C                                
5. (______) And what did she haveat dinner . _______     
A         B  C
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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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