whether，or是就近原則嗎

是就近原則，例如：

1、It remains to be seen whether or not this idea can be put into practice.這一想法能否付諸實踐還有待於觀察。

2、The question arises as to whether or not he knew of the situation.問題是，他對局勢是否瞭解。

3、Whether or not we're successful， we can be sure that we did our best.不管成功與否，我們確已盡了最大努力。