学进去-教育应平等而普惠
试题
类型:句子匹配
难度系数:0.65
所属科目:小学英语
为下列句子选择合适的答语。
(        )1. What colour is the pen?                         A. Yes, it is.
(        )2. Is the bag very big?                              B. It's pink.
(        )3. Do you like this computer?                    C. It's three yuan.
(        )4. How much is it?                                   D. Daming wants to buy one.
(        )5. Who wants to buy a pen?                       E. No, I don't.
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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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