3450| 5
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NO 1 |
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常函数和指数函数e的x次方走在街上,远远看到微分算子,
常函数吓得慌忙躲藏,说:“被它微分一下,我就什么都没有啦!” 指数函数不慌不忙道:“它可不能把我怎么样,我是e的x次方!” 指数函数与微分算子相遇。 指数函数自我介绍道:“你好,我是e的x次方。” 微分算子道:“你好,我是‘d/dy!’ |
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paisley
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I'm Nobody
Emily Dickinson I'm nobody,who are you? Are you nobody too? Then there's a pair of us. Don't tell---they'd banish us, you know. How dreary to be somebody, How public---like frog--- To tell your name the livelong June To an admiring bog. |
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