A boss is a person -is in charge of the whole company and deals with many important things为什么不填what?为什么填who?

问题描述:

A boss is a person -is in charge of the whole company and deals with many important things
为什么不填what?为什么填who?

boss 是人

who是指具体哪个人,
what的意思在这里是代名词从句表示a boss的职业
所以这里只能用what而不能用who

A boss is a person -is in charge of the whole company and deals with many important things
这是一个定语从句,而从句中 缺少一个人做主语,因为who或that能充当这个作用`which不能

who 才能指代人
what 指代物