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题目
英语 1.My father bought some nice food for my sister and me,but my sister (near)ate it up.适当
速速,
2.lf everything goes well,(possible)we will be able to get it done before it gets dark.适当形式
3.When you look at the bright and (burn)sun.适当形式
4.lf you have time,you may help me (clearly) the snow in front of the house.适当形式
She lost her umbrella (in the wind )and almost fell over.划线提问.

提问时间:2020-10-16

答案
举一反三
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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