那么请问Someone called on you just now 与you were wanted on the phone 有何区别?
题目
那么请问Someone called on you just now 与you were wanted on the phone 有何区别?
答案
前者指刚刚有人打电话找过你
后者指距离打电话已经有一会儿了,比如你出去办事了,回来后你的秘书告诉你you were wanted on the phone 有人打电话找过你
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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