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B:
A: What are you doing?
B:
A: It’s sunny today. Can you play football with me?
B:
A: OK! Let’s go!
B: It’s so hot, Peter. I want an ice cream!
A: I don’t have money.
B: Yes, I do. I have ten yuan.
A:
B: Two yuan for an ice cream.
A: Great! Let’s buy some ice cream.
| A．How much is an ice cream? |
| B．Do you have any money? |
| C．Good morning, Peter. |
| D．Sure! I can. |
| E．I am reading an English book. |
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
