英语翻译
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英语翻译
a fly is resting on the borrom of a closed jar.The jar is placed on a very accurate balance,and there is equilibrium.The fly starts flying.Will there be equilibrium again.
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A fly is resting on the bottom of a closed jar.The jar is placed on a very accurate balance,and there is equilibrium.The fly starts flying.Will there be equilibrium again.一个苍蝇静止在密闭瓶子的底部,...
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已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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