学进去-教育应平等而普惠
试题
类型:对划线部分提问
难度系数:0.65
所属科目:小学英语
句型转换。
1.I have some pens.(改为否定句)
_______________________________
2.I want those shirts.(改为单数句)
_______________________________
3.Do you like this ball?(用that ball改为选择疑问句)
_______________________________
4.We won the game.(对画线部分提问)
_______________________________
5.We bought some ice cream in the shop.(改为一般疑问句)
_______ you _______ _______ ice cream in the shop?
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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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