求助语法01－01－22

gre3333

by means of。。。 是固定短语。

linlei99

22. Philosophy is the study of the nature of reality, knowledge, existent, and ethics by means of rational inquiry.

existent 错了。但是，为啥means前可以不加限定词或冠词？请高手解释一下语法知识。多谢！