There are sixty m___ in an hour. It is raining outside. Please take your u___ with you.
题目
There are sixty m___ in an hour. It is raining outside. Please take your u___ with you.
There are sixty m___ in an hour.
It is raining outside. Please take your u___ with you.填词
答案
1 minutes分钟
2 umbrella 雨伞
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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．
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