would you mind doing and doing?还是would you mind doing or doing?
题目
would you mind doing and doing?还是would you mind doing or doing?
答案
看语境了 可以是并列也可以是选择的.
eg:would you like going out and having a meal?
would you like watching tv or playing computer?
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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