根据英文释义及首字母提示,完成下列单词的拼写
题目
根据英文释义及首字母提示,完成下列单词的拼写
l___ give something to others during a period of time.
s___ being understand.
b___ a baby comes to the world.
n____ something that tells people which country he or she comes from.
答案
1.lend
2.see (not sure about this)
3.born
4.nationality
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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