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Hello, I’m Mary. I’m a girl. I’m eight years old. I’m tall and thin. There are four people in my family, my father, my mother, my sister and I. I like autumn because it’s cool. I have a good friend. Her name is Lisa. She’s seven years old. Lisa is short. She has long hair and big eyes. She is beautiful. We often play together.
1．Mary is short and thin.2．Mary has a brother.
3．Mary likes autumn because it’s cool.
4．Lisa is eight years old, too.
5．Lisa’s eyes are big.
6．Mary and Lisa are good friends.
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
