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（）1. How old are you? A OK. Let’s go.
（）2.What does it mean? B No, you can’t.
（）3.Is he a park keeper? C At six o’clock.
（）4.Shall we go to the park? D I’m six.
（）5. What’s the matter? E It means “No littering!”.
（）6.Can I climb trees? F Yes, he is.
（）7. What time do you get up? G No, he doesn’t.
（）8. Does David like running? H I’m ill.
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
