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A: _________
B: That’ great! Let’s go.
A: Do you like this toy bear?
B: No, I don’t like it. Look, that toy elephant is very nice.
C: ___________
A: Please give me the toy elephant.
C: O.K. Here you are.
B: _____________
C: Twenty-five yuan.
A: Oh, the toy elephant’s too dear. _____________
C: It’s eighteen yuan.
B: Oh, Mum. I’ll take the toy bear .
(1)____________ (2)_________ (3)________ (4)_______
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同类型试题
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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
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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
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