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| A. I’m sorry. B. Yes, Miss Li. C. Good afternoon, Mr Green. D. It’s a robot. E. They’re balls. F. Yes, they are. G. It’s one o’clock. H. It’s on your bed. I. No, it isn’t. |
2．Good afternoon, class.
3．Please open your books.
4．Don’t sleep in clas, Liu Tao.
5．Are these your crayons?
6．Is that your toy car?
7．Where’s my T-shirt?
8．What’s this?
9．What are those behind the door?
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
