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学进去-教育应平等而普惠
试题
类型:选内容补全对话
难度系数:0.65
所属科目:小学英语
Children: 1. Peter.
Peter: Thank you, my friends! 2. 3.
Jill: I have an orange hat.
Kitty: I have an orange skirt.
Joe: I have an orange T-shirt.
Peter: 4.
Alice: Look, Peter! I have an orange card for you.
Peter: Thank you so much. Here are many orange things. 5.
Children: OK.
A.What orange things do you have?
B.What do you have, Alice?
C.Welcome to my “orange party!”
D.Happy birthday!
E.Let’s have some fun.
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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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