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,将正确答案写在横线上。
1.Some dinosaurs arebigthan the house. (_______) _______________
A  B  C
2.Did you sawa film? (______________________
A     B C
3.We didn’tused computer then. (_______________________ 
A    B            C
4.Sarah wentswimmingevery day. (______________________
A       B     C
5.I couldn’t ride my bike good. (______________________
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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