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I have a good friend. Her name is Betty. She comes from the USA. Her father and mother are teachers in our school. Her father is a PE teacher. He is tall and strong. He can play football very well. Her mother is a maths teacher. She is tall and thin. She has long hair and black glasses. Betty is tall and thin, too. But she has short hair. She has big eyes and small ears. She likes beef and milk. She’s a quiet girl. We all like her.
1．Betty comes from England.2．Betty’s father is tall and strong, but her mother is tall and thin.
3．Betty’s mother has long hair and brown glasses.
4．Betty has short hair, big ears and small eyes.
5．Betty likes beef and milk.
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
