学进去-教育应平等而普惠
试题
类型:填空题
难度系数:0.65
所属科目:小学英语
选词填空。
Who, which, where, what, whose, how old, How, how many, which colour,
1. A: ________ is the time now?      B: It’s half past four.
2. A: ________ is Xiao Ming from?     B: China.
3. A: ________ is your uncle?     B: He is 29.
4. A: ________ is that girl?     B: She’s my sister, Lily.
5. A: ________ are you?     B: Fine, thanks.
6. A: ________ books do you have?      B: I have four.
7. A: ________ pen is this?    B: It’s hers.
8.A: ________ boy is Arron?   B: That tall boy.
9. A: ________ do you like best?     B: Blue.
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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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