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Mike: Hello, Julie.
Julie:
Mike: Julie, here is a box for you!
Julie: Thank you, Mike.
Mike: Who is it from?
Julie:
Mike: Who is your pen friend?
Julie:
Mike: What is in the box?
Julie:
Mike: Do you like it?
Julie:
| A．It’s a Bing Dwen Dwen（冰墩墩）in the box. |
| B．Lingling is my pen friend. |
| C．Oh, it’s from my pen friend. |
| D．Hello, Mike. |
| E．Yes, I like it very much. |
| F．I’m fine. |
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
