what he had said about the accident and done with it( )our trouble..added to 为什么不是D were added to.
题目
what he had said about the accident and done with it( )our trouble..added to 为什么不是D were added to.
答案
add to 意思是“增加了”were added to意思是被加到...此题意思是对于这起事故他所说的和做的增加了我们的麻烦
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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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