学进去-教育应平等而普惠
试题
类型:句型转换
难度系数:0.65
所属科目:小学英语
句型转换。
1. I like Music. (改为否定句)
I _______like Music.
2. These are Helen’s trousers. (对画线部分提问)
_______ _______ are these?
3. He can’t play football. (改为肯定句)
He _____ play football.
4. It’s time for dinner. (改为同义句)
It’s time __________ dinner.
5. I usually have lunch at eleven.(对划线部分提问)
______ _______ you usually have lunch?
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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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