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My name is Liu Gang. This is our classroom. We have twenty boys and twenty-three girls. Peter is my good friend. He is tall. His nose and eyes are big, but his mouth is small. Lily is his cousin. Her eyes are blue, and her hair is yellow. She is cute. They are twelve years old. Look, this is our English teacher, Miss Yang. She is beautiful. She is thin and short. Her hair is very long. She loves us very much. And we love her, too.
1．There are twenty girls in the classroom.2．Peter is twelve years old.
3．Lily's hair is yellow.
4．Peter's mouth and nose are big.
5．Miss Yang is tall and thin.
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
