搜索
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）_______
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
