1. One day, the lion is sleeping. A small mouse comes up to him.
2. The lion is awake and he feels very angry. He shouts to the mouse, "I’ll eat you!"
3. The mouse is so afraid, "I’m so sorry. Mr lion! Please let me go this time. Maybe I can help you one day. " The lion lets the mouse go.
4. Some days later, the lion is caught in a net (网). He is sad. "What can I do? Who can help me?" says the lion.
5. Then the little mouse comes. He helps the lion get out of the net by his teeth.
6. "Thank you, you’re small but kind," says the lion. "You are kind, too," says the mouse. They become 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