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学进去-教育应平等而普惠
试题
类型:匹配题
难度系数:0.64
所属科目:小学英语
从Ⅱ栏中选出Ⅰ栏的正确答语。
Ⅰ                                     Ⅱ
(     )1. What can you do?                  A It’s a rooster.
(     )2. What’s this?                     B I can sing·
(     )3. Can you see a red ruler?          C No,it isn’t.
(     )4. Is this a rat?                    D Yes,there are.
(     )5. Are there trees?                  E Yes,I can.
(     )6. How are you?                      F There are three.
(     )7. What color is it?                 G I'm fine.
(     )8. How many rooms?                  H It's orange.
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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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