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Sam: Where did you go yesterday, Lingling?
Lingling: I went to the supermarket.
Sam:
Lingling: I bought some fruit and vegetables.
Sam: That’s nice.
Lingling: Yes! And I will cook for my mother.
Sam:
Lingling: She has got a cold.
Sam: I’m sorry.
Lingling: Yes. She is better. Thank you.
Sam:
| A．What’s the matter with her? |
| B．Fruit and vegetables are good for us. |
| C．You’re welcome. |
| D．What did you buy? |
| E．Does she feel better now? |
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
