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A: Hello, Wang Hai. Where did you go last Saturday?
B: You know, it was Double Ninth Festival. We had a big lunch with my grandparents in the restaurant.
A: Really?
B:
A:
B: Oh, I’m sorry. I forgot it. But it’s not too late now. Happy birthday to you, Li Wei.
A: What a nice robot! Thanks.
| A．It was my birthday. |
| B．Here’s a new robot for you. |
| C．I called you, but you were not at home. |
| D．We climbed Maoshan with my grandparents |
| E．What else did you do? |
| F．What presents did you give? |
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
