that's not 和that isn't的区别什么时候用that's not,什么时候用that isn't?请详解,

that's not 和that isn't的区别什么时候用that's not,什么时候用that isn't?请详解,
that's not 和that isn't的区别
什么时候用that's not,什么时候用that isn't?请详解,

that's not 和that isn't的区别什么时候用that's not,什么时候用that isn't?请详解,
not,就是用于be动词回答时的否定.另外一个是用于一般疑问句或is带头的回来.