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Anny was 11 years old. One day in her summer holiday, she sat in the garden. She wanted to get some money during the summer vacation. And she had an idea! Many people had dogs. They loved their dogs. But most people were busy with their work. Sometimes they didn’t have the time to walk their dogs.
Anny went to many houses and asked the people if she could walk their dogs. Some of people wanted to walk their dogs themselves, but five people said yes to Anny. She was excited.
Every morning that summer, she walked the dogs. By the end of the vacation, Anny had saved eighty dollars.
1．Anny was an 11-year-old girl.2．She wanted to get some money during the summer vacation.
3．She didn’t have an idea.
4．She walked the dogs for five people.
5．She got 18 dollars in the summer vacation.
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
