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Look, there are many people in the park. Three old men are playing chess under a big tree. Two girls are rowing a boat on the lake. There is a boy. He is flying a kite. There is a cat. It’s climbing a tree. There are three dogs. They are running here and there. There are two women. They are talking.
1．There are many people in the zoo.2．Three old women are playing chess under a big tree.
3．Two boys are rowing a boat on the lake.
4．There is a dog. It’s climbing a tree.
5．There are two women. They are talking.
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
