Ms Smart: John, please give out the books. Give one book to every child.
John: Are there enough books?
Ms Smart: Yes, I bought twenty-five books yesterday. There are twenty-five children in the class.
John: Oh! There are only twenty books. There aren't enough.
Ms Smart: Let me see. Oh, I forgot some books in my office (办公室). Let me get them.
1.There are twenty-six children in the class. (
2.There are enough books. (
3.Ms Smart bought twenty books. (
4.Give two books to every child. (
5.Ms Smart forgets some books in her office. (
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同类型试题
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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
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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
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