It was the last day for Teddy in the company. After he packed up all his personal belongings, he started back home. An old lady stood on the side of the road. He a
Even with the smile on his face, she was w
He said, “I am here to help you, Madam. Why don’t you wait in the car where it is warm? By the way, my name is Teddy.”
Well, all she had was a flat tire(爆胎), but for an old lady, that was bad enough. Teddy lay down and moved under the car changing the tire. But he had to get d
As he was tightening up the lug nuts, she rolled down the window and began to talk to him. She told him that she was from St. Louis and was only just passing though. She was grateful for his help.
Teddy just smiled as he finished the work. The lady asked how much she owed him. Any amount would be all right with her. She already i
He told her that if she really wanted to pay him back, the next time she saw someone who needed help, she could do him or her a favour w
He waited until she started her car and drove off. It had been a cold day and he had felt d

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

