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（在水果店，A和B两人正在买水果……）
A: Oh, so_______apples and bananas!
B: I'd like______apples.__________ is it?
Salesgirl: 3 yuan.__________ do you want?
B: 2 pounds, please.
Salesgirl: OK, here you are.
B:__________.
A: Have you got ________oranges?
Salesgirl: Of_________. Look here.
A: Oh, how nice!______________ is it?
Salesgirl: 2 yuan and 5 jiao.______________ do you want to buy?
A: 5 pounds, please.
Salesgirl:_____________________.
A: Thank you very much.
Salesgirl: You're welcome.
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
