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Waiter: Can I help you?
Lisa: Yes. I want a cake, please.
Waiter: What kind of cake would you like? A chocolate cake?
Lisa: No, I’d like a strawberry cake.
Waiter: What shape would you like?
Lisa: I’d like a square one. How much is that square cake?
Waiter: Sixty-eight yuan. Here you are. Anything else?
Lisa: Yes. I also want some ice-cream. How much is it?
Waiter: Nine yuan. Here you are.
Lisa: Here’s the money. Thank you.
[[QOrDeR]]What does Lisa want to buy?
【小题2】Does Lisa like a chocolate cake?
【小题3】What shape would Lisa like?
【小题4】How much are the cake and the ice-cream?
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
