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Ⅰ Ⅱ
( )1. How old are you ? A Thank you.
( )2. This is for you. B I’m six.
( )3. Would you like a cake? C He’s ten.
( )4. Don’t shout here. D Yes, it’s my pencil.
( )5. Is that your pencil? E Yes, it is.
( )6. How old is he? F Yes, please.
( )7. Where’s my schoolbag ? G It’s under the desk.
( )8. Is this a rubber? H I’m sorry.
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
