whether if or not
whether if or not
whether...or not; if...or not
if not和whether or的区别
whether...or not与if ...or not...有什么区别
whether...or not中whether能用if替换吗?
whether和whether or not
Decide whether the following sentence are correct or not.If
whether ...or not
whether or not
whether if 的区别!除了 whether.or not还有 其他区别吗?
whether与or not在句中不相邻时whether是否可以改为if
关于whether和whether or not?