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(Betty is talking with her friend Daming on the phone.)
Daming: Hello, this is Daming. Who’s that?
Betty: This is Betty. I want to visit your hometown—Tianjin. Can you give me some suggestions?
Daming: 1 . What do you want to know?
Betty: 2 ?
Daming: Yes, you are right. it’s usually very hot in summer.
Betty: 3 ?
Daming: I think you’d better come in October.
Betty: 4 ?
Daming: Because the weather starts go get cooler and the trees start to change colour.
Betty: 5 ?
Daming: You can visit many places of interest here, such as Tianjin Ancient Culture Street and you can also try some traditional Chinese food.
Betty: I’m looking forward to visiting Tianjin. Thank you for your suggestions. Bye-bye.
Daming: bye-bye. I hope to see you soon.
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
