英语翻译
题目
英语翻译
宇航员在火星上发现生命了吗?
—the astronauts__ life——Mars?
My father likes hiking better than swimming(改为同义句）
My father___ hiking___ swimming.
根据句意及首字母提示完成单词.
I haven't heard from my little brother r___ .I am a little worried about him.
How old are you?Oh,no.It's a s___.
答案
gone to;for business
discovered on
prefers to
recently
secrect
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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