here is 与 this is 区别是?

here is 与 this is 区别是? this is和here is的区别 here is a book与this is a book的区别 here is a photo 与this is a photo的区别? Here is 和 this is 有什么区别? here is 和 this is 用法上有什么区别 This is ...和 Here is ...有什么区别? this is 和here is 有什么区别? 请问：HERE IT IS与HERE YOU ARE的区别? this is a apple和here's a apple区别 this is my watch 和here ismy watch 区别? here is 和 this is 是一样吗