when is your birthday?My birthday is December 17.这样回答正确吗?
题目
when is your birthday?My birthday is December 17.这样回答正确吗?
when is your birthday?这句话的回答应该是My birthday is December 17th.但为什么冀教版七年级上册的书上印的却是My birthday is December 17.是印刷错误吗?
答案
My birthday is December 17th 和 My birthday is December 17都表示同一个意思啊,晕!
序数词表示几号几号时,后面的st,rd或者th可以省略啊!
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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