.Tom’s uncle knows computers well,and he a computer engineer(工程师) .A.maybe B.may be C.may
题目
.Tom’s uncle knows computers well,and he a computer engineer(工程师) .A.maybe B.may be C.may
答案
是不是Tom's uncle knows computers well, and he ______ a computer engineer.(工程师)? A. maybe B. may be C. may
答案选B.汤姆的叔叔很懂电脑,他可能是一位电脑工程师.
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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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