学进去-教育应平等而普惠
试题
类型:排序题
难度系数:0.40
所属科目:小学英语
重排句子组对话。
1. I play it every day.
2. Yes. I play sports every day.
3. Do you like sports?
4. You look healthy, Mary.
5. Yes. I always eat a lot of vegetables and fruits.
6. How often do you play it?
7. What is your favorite sport?
8. Ping-Pong is my favorite sport.
4 (_____)(_____)(_____) 7 (_____)(_____)(_____
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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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