Which的意思：
1.(用作疑问代词)哪一个,哪一些
例子：Which is my seat？
2.(用做关系代词)那一个,那一些
例子：He also had a gun with which to defend himself.
3.(用作疑问形容词)哪一个,哪一些
例子：Which university did you go to, Oxford or Cambridge?
4.(用作关系形容词)这个,这些
例子:The doctor told him to give up smoking, which advice he took.
Whose意思：
1.(用作疑问形容词)谁的东西
例子:Whose tablet is that?
2.(用作关系形容词)某(些)人的
例子：This is the little girl whose parents were killed in the great earthquake.
希望我可以帮助到你：）
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