学进去-教育应平等而普惠
试题
类型:匹配题
难度系数:0.65
所属科目:小学英语
给问句选择答语。
(_____) 1. How are you?                  

A.Yes, I can.
(_____) 2. Whose coat is this?

B.I’m fine. Thank you.
(_____) 3. Can you play the violin?

C.Ten
(_____) 4. Do you have a piano?

D.It’s Jim’s.
(_____) 5. How many boos do you have?
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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