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A: Hello, Mike.
B: Hello, Yang Ling. Welcome to my home(家).
A: Happy birthday, Mike. This is for you.
B: Oh, a robot! I like it. Thank you. I have many robots.
A: How many robots do you have?
B: Twelve. They are cute and big. They can dance(跳舞).
A: Cool! Can I have a look?
B: Sure.
1．Today is Yang Ling’s birthday.
2．Mike likes robots.
3．Mike has 13 robots.
4．The robots can sing and dance.
5．They’re in Mike’s home.
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
