Many people were too busy to____a holiday before the Olympics last year
题目
Many people were too busy to____a holiday before the Olympics last year
A．explore B.afford C.offer D.connect
答案
B.afford
afford不光是指没钱支付不起,也指太忙抽不出时间.既然前面说了太忙了,那这里就是没有时间度假的意思.
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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