whether 和 whether or not 有什么区别?

whether.or. whether 和if 的区别 .whether ...or not .一句话 whether 和 whether or not 有什么区别? whether一定要和 or not连用吗. if not和whether or的区别 whether or共有几个意思和用法 whether whether ..or not... whether or not no matter whether = whether…or? whether or not 与whether的区别 whether和whether or notOne topic now under debate is whether or not gifted students should be fostered with general learners.这里是用whether呢?还是用whether or not呢?这俩的区别在哪? whether ...or not请问Please tell me whether or not you go.和please tell me whether you go or not.两个句子一样吗,正确吗, 是whether or还是whether...or... ?是什么意思?请给例句 whether...or.造句..及用法 whether or 有什么用法? whether fixed,contingent or otherwise whether … or …意思