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Hi! Liu Jing,
My grandpa is going to Beijing next month because he ahs heard a lot about the city and he would like to see it himself. He says the bus service in Beijing is very good now, and people can to anywhere by bus. Is he right? Can you tell me something more about it?
I’m looking forward to hearing from you soon.
Yours,
Tony
Hi! Liu Jing,
My grandpa is going to Beijing next month because he ahs heard a lot about the city and he would like to see it himself. He says the bus service in Beijing is very good now, and people can to anywhere by bus. Is he right? Can you tell me something more about it?
I’m looking forward to hearing from you soon.
Yours,
Tony
Hi! Tony,
I’m glad to know your grandpa is coming to Beijing. ____________________
____________________________________________________________________
If you have more questions, please ask me.
Yours,
Liu Jing
Hi! Tony,
I’m glad to know your grandpa is coming to Beijing. ____________________
____________________________________________________________________
If you have more questions, please ask me.
Yours,
Liu Jing
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
