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Peter is from Australia. He is new at his school. His classmates are very nice to him. They’re all his good friends. He likes to play basketball in the playground with Wang Tao. Sally is from the USA, she’s in Peter’s class. Peter likes talking with her on the phone. On Saturday and Sunday, Peter and his friends don’t go to school. They often play football, go boating or fly kites in the park.
1．Peter is from America.2．Peter often plays basketball in the park.
3．Sally is Peter’s classmate.
4．Sally often gets emails from Peter.
5．Peter and his friends often go boating on Sunday.
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
