A. Good morning! B. Hi, I’m Alice. C. I’m fine, thank you. D. It’s a dog. E. Nice to meet you, too. F. My name’s Colin. G. Bye. H. Good afternoon. I. Hi! J. Yes, it is. |
2.What’s your name?
3.Hello!
4.Bye!
5.Is that a zoo?
6.Good morning!
7.How are you?
8.Nice to meet you.
9.What’s this?
10.Hello! I’m Liu Zhaoyang!
同类型试题
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
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