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B:
A: It was my birthday yesterday.
B: Wow, what did you do at the party?
A: My friends were at my party.
B: What did yo eat?
A: We had some cotton candy, chocolate, fruit, orange juice, and a very big cake!
B:
A: Yes, I did. I got many gifts, and I liked the toy car the best. It was from my good friend Ben.
B:
| A．Did you get any gifts? |
| B．I had a birthday party at home. |
| C．We had fun and ate some tasty food. |
| D．What happened? |
| E．Wow, you’re really lucky. |
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
