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Mum: Happy Birthday, Lily!
Lily:
Mum: Look at this green dress. It’s for you.
Lily: Yes. It’s very nice.
Dad: Happy Birthday, Lily! Look! What’s this?
Lily:
Dad: No. It’s a birthday cake. It’s for you, too.
Lily:
| A．Oh, great! |
| B．I like it very much! |
| C．Is it nice? |
| D．Thank you, Mum! |
| E．It’s a ball. |
| F．is it a ball? |
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
