Is this your sister 与Is she your sister?的区别

问题描述:

Is this your sister 与Is she your sister?的区别

Is this your sister 是“这是你的姐姐吗?"
Is she your sister?是“她是你的姐姐吗?”
第一个是人物就在面前(貌似吧)
第二个是人物在不远处(貌似吧)