学进去-教育应平等而普惠
试题
类型:连线题
难度系数:0.65
所属科目:小学英语
大家来帮小鸡找到它们的妈妈吧。
           A                                B
(____)1. What's on the table?       a. Good night.
(____)2. Good night.              b. My favourite food is bread.
(____)3. What's for lunch?        c. I like noodles for lunch.
(____)4. What's your favourite food?  d. Food.
(____)5. Would you like some soup?   e. Yes,please.
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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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