whether or not 引导的是什么从句

　　The question arises as to whether or not he knew of the situation.

　　问题是，他对局势是否了解。

　　We're debating whether or not to go skiing this winter.

　　我们盘算着今年冬天是否去滑雪。

　　It remains to be seen whether or not this idea can be put into practice.

　　这一想法能否付诸实践还有待于观察。

　　Whether or not we're successful, we can be sure that we did our best.

　　不管成功与否，我们确已尽了最大努力。

　　This blood test will show whether or not you're immune to the disease

　　这个血检会显示你是否对这种疾病具有免疫力。