学进去-教育应平等而普惠
试题
类型:匹配题
难度系数:0.94
所属科目:小学英语
根据问句选答句, 把正确的序号写在题前的括号内。 
______) 1. Will you phone me ?             A、No, he isn’t.
______) 2. Is Daming naughty ?            B、Yes, I will.
______) 3. Was he there?                 C、No, he wasn’t.
______) 4. What will you be ?             D、There are forty.
______) 5. How many boys?             E、Maybe I’ll be a writer.
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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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