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Wu Dong has a good friend. His name is Peter. He is from the USA. Wu Dong and Peter are in the same class. They go to school five days a week. They stay at home on Sunday and Saturday. Peter likes China and Chinese food . He likes rice cakes very much. At school they play ping pong after class.
Wu Dong and Peter like making things. Now they are making a plane. They like flying planes on Sunday morning in the park. Peter speaks English and a little Chinese. Wu Dong speaks Chinese and a little English. They teach each other.
1．Wu Dong has an American friend.2．They go to school from Monday to Friday.
3．They often fly planes in their school.
4．Wu Dong teaches Peter English and Peter teaches Wu Dong Chinese.
5．Peter often eats rice cakes because he likes eating them.
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
