English is spoken as the first language in_______.A.Japan B.France C.Russia D.Australia
题目
English is spoken as the first language in_______.A.Japan B.France C.Russia D.Australia
答案
English is spoken as the first language in__Australia_____.
答案当然选D了,上述四个国家中,只有澳大利亚将英语作为第一语言
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.
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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