she likes to swim .she likes swimming.she likes swim.这3个有啥区别呢
题目
she likes to swim .she likes swimming.she likes swim.这3个有啥区别呢
答案
前两个句子是对的,第3个句子是错的.she likes to swim 几乎等于she likes swimming.,只是前者更强调具体某一次的动作或者行为,而后者侧重于习惯性的,经常性的动作或者行为.如：I like swimming ,but don't like to s...
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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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