搜索
B: Oh! Your mum is not at home. Let's go to the restaurant for lunch.
A: Hooray (好哇).
C:
A: I want a hot dog, please.
B: And I want two sandwiches.
C:
A: I want a cola.
B: I want a glass of juice.
C: It's 4 dollars.
B: Here you are.
C: Thank you.
| A．Enjoy your meal. |
| B．What's a hot dog? |
| C．I'm hungry |
| D．Can I help you? |
| E．How much is it? |
| F．And to drink? |
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
