问题
填空题
已知二次函数y=（x-1）2+（x-3）2，当x=______时，函数达到最小值．
答案
因为原式可化为y=2x2-8x+10=2（x-2）2+2，所以当x=2时，函数达到最小值．
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已知二次函数y=（x-1）2+（x-3）2，当x=______时，函数达到最小值．
因为原式可化为y=2x2-8x+10=2（x-2）2+2，所以当x=2时，函数达到最小值．
面对中学生“出国热”，社会对此有不同的看法。请你以Studying Abroad为题，根据以下提供的信息，谈谈自己的看法。
3）参考词汇：媒介，中间人 mediator Studying Abroad In recent years, studying abroad has been popular.________________________ ___________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ __________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ |