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Betty and Kitty are twins. They’re 10 years old. They look the same. But they have different hobbies. Betty likes collecting stamps. She has many beautiful stamps. They are from different cities and countries. But Kitty likes growing flowers. Betty and Kitty both like reading books. Betty likes reading storybooks. But Kitty likes reading science books. On Sunday, they usually ride bikes to the park. They can play with their friends there. Sometimes their parents go there, too.
1．Kitty and Betty are twins.2．Betty likes growing flowers.
3．Kitty likes reading storybooks.
4．They’re both twelve years old.
5．They usually take a bus to the park 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
