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J: Hi, Lucy.
L: Hi, Jason. Good morning!
J: Because it’s going to rain.
L: I don’t think so. Look at the blue sky.
J: What time is it now?
L: It’s eight o’clock. School starts at 9. One hour to go!
J: Ok, let’s go.
…
C:
L: What do you want, Jason?
J: I want noodles and milk. What about you?
L:
J: So we want a hamburger, noodles, milk and a cola, please.
C: Ok.
L:
C: It’s twenty dollars and five cents.
L: Here you are.
C: Thank you. Here’s your food. Enjoy your meal!
| A．It’s a beautiful day! |
| B．I want a hamburger and a cola. |
| C．Can I help you? |
| D．Good morning. |
| E．How much is it? |
| F．Why are you wearing a raincoat? |
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
