Many in the credit industry expect that credit cards will eventually ____ paper money for almost eve
题目
Many in the credit industry expect that credit cards will eventually ____ paper money for almost every purchase.
A) exchange B) reduce C) replace D) trade
答案
选C
意思是“替代,取代”
整句话的意思是 信用卡工业方面的很多人都希望信用卡能逐渐在每一笔支付中取代纸质的钱币.
希望能帮上楼主~
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．
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