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Asistant: Can I help you?
Chen Jie: Yes, I want a pair of boots.
Asistant: What colour do you like?
Chen Jie: I like blue.
Asistant: What size?
Chen Jie: Size five.
Asistant: How about this pair?
Chen Jie: They are very nice. How much are they?
Asistant: They’re fifty yuan.
Chen Jie: OK, I’ll take them. Here is the money.
Asistant: Thank you. Bye.
Chen Jie: Bye-bye.
（1）Chen Jie wants a pair of boots.
（2）Chen Jie likes blue.
（3）The boots are 15 yuan.
（4）Chen Jie likes the boots very much.
（5）Chen Jie is on the farm.
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
