A. Good morning!
B. Hi, I’m Sarah.
C. Fine, thank you.
D. Thank you.
E. Nice to meet you, too.
F. My name’s John.
G. See you!
H. Good afternoon.
I. Hi!
J. OK!
1.Good afternoon. (
2.What’s your name? (
3.Hello! (
4.Bye! (
5.Let’s go to school! (
6.Good morning! (
7.How are you? (
8.Nice to meet you. (
9.Let me help you. (
10.Hello! I’m Wu Yifan. (
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