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Waitress: Good morning. Can I help you?
Lucy: Yes, I want a hot dog. Do you want a hot dog, too, Mary?
Mary: No, I don’t like hot dogs. I want two hamburgers.
Waitress: And to drink?
Lucy: A cola for me, please.
Mary: And I want some milk, please.
Waitress: OK. Anything else?
Lucy and Mary: No, thanks.
1．Lucy and Mary are at home. （
2．Lucy wants two hamburgers. （
3．Mary doesn’t like hot dogs. （
4．Mary wants to drink some juice. （
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
