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
选出错误项,并把正确的写在后面横线上。
(_______)1. Yesterday I cometo Shenzhen from Guangzhou. _______________
A   B          C
(_______)2. I’m going to am in the UK. _______________
A     B    C
(_______)3. We took lot of photos. _______________
A      B     C
(_______)4. We were very hot but we bought some ice creams. _______________
A          B                  C
(_______)5. They went in a train and see many people. _______________
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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