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| much take you too about anything won’t help buy are nice |
Lily: Yes, please. I want to 2． some socks.
Salesgirl: Look, we have many socks. They are 3．.
Lily: How4． are the white ones?
Salesgirl: They are eighty yuan.
Lily: That’s5． expensive. I6． take them. What 7． those black ones?
Salesgirl: Fifteen yuan.
Lily: They are cheap. I’ll8． them.
Salesgirl: Do you want 9．else?
Lily: No, thank you.
Salesgirl: Here10． 11．.
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
