they were invited to an important ball ()the first time ()lives
题目
they were invited to an important ball ()the first time ()lives
they were invited to an important ball (for)the first time (in)livesA:for,in B:at,in C:on,for D:in,with为什么要选A而不选其他三个呢?
答案
前言They were invited to an important ball ()the first time ()lives.A:for,in B:at,in C:on,for D:in,with答案:A翻译:在他们的生命中,他们第一次被邀请参加一场很重要的球赛.解析:for the first time固定短语,表示作为第一次,首次;第一次.表示有生以来或一段时间内第一次做某事.in lives 在生命力/在生活中
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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