do you think it necessary for you to say thank you to your parents when they do something for you?
题目
do you think it necessary for you to say thank you to your parents when they do something for you?
and is it necessary for them to say thank you to you if you've done them a favor?
what is your idea of a man of good manners?
答案
yeah,i think so.because a child is taught to be a person of good manners from the day he or she is born.to behave like a gentleman or lady,one needs to learn from others or read related books.and the ...
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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