The expressions on her face____me that she was lying.A、confirmed B、informed
题目
The expressions on her face____me that she was lying.A、confirmed B、informed
答案
inform sb that
告诉某人xxx
confirm不这么用的,它是“确认”的意思
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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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