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:0.85
所属科目:小学英语
Tim: Look, Mum. I have a new book.
Mum: 1.
Tim: It’s about baseball.
Mum: 2.
Tim: Yes, I do.
Mum: 3.
Tim: Yes, very interesting.
Mum: 4.
Tim: Twelve yuan.
Mum: 5.
Tim: My teacher gave it to me. He bought it at the bookshop.
Mum: You should say “thank you” to your teacher.
A.How much is it?
B.Do you like baseball?
C.It looks interesting.
D.What’s it about?
E.Who gave it to you?
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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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