Which "which" in the following sentences CANNOT be replaced by "as"?
A. Jane decided to quit her job, which we all knew.
B. Our boss invited us to dinner, which was very kind of him.
C. He changed his mind so frequently, which made me quite angry.
D. He is a teacher which is clear from his manner.
查看答案
七情内伤的致病特点包括()、()和情志波动,影响病情。