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Dear John,
My name’s Bill. I’m 12 years old. I live in a village with my parents. It’s small but beautiful. There are no tall buildings. You can see many flowers and trees there.
My favourite food is fish, it’s delicious. I can play ping-pong. I know you can do some kung fu, but I can’t. Can you help me?
Your friend,
Bill
（1）Bill is twelve years old.
（2）Bill likes fish very much.
（3）There aren’t any tall buildings in the village.
（4）Bill can play ping-pong and do some kung fu.
（5）Bill lives in a small village with his grandparents.
（6）There are many trees and flowers in the village.
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
