搜索
There is an old man. He has a big and old house. He loves dogs. There are a lot of dogs in his house. There are black dogs, white dogs, fat dogs, thin dogs, mother dogs and baby dogs. Children like to come to his house and play with the dogs. More and more dogs come to the old man’s house. Soon there are too many dogs. Then he has an idea. He gives each child a dog. Then he is happy and the children are happy. The dogs are happy, too. They each have a home.
1．The old man likes dogs very much.2．There are many dogs in his house.
3．Many children come to his home.
4．The old man gives each child a cat.
5．The children aren’t happy.
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
