___the help of Dr Robot,a human doctor can __a lot of useful information when he meets his patient
题目
___the help of Dr Robot,a human doctor can __a lot of useful information when he meets his patient
A.With B.For C.Behind D.Under
A.spend B.have C.sand D.speak
答案
__With_the help of Dr Robot,a human doctor can _have_a lot of useful information when he meets his patient.
句意:有机器人医生的帮助,人类医生在面对患者时会拥有很多有用的信息.
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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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