下列（）
A.主动脉扩张
B.食管癌
C.左房增大
D.膈疝
E.胸腺肥大
参考答案：E
His wife is finding fault with him, which makes him very angry.[ ]
A. constantly
B. regularly
C. previously
D. instantly
简述发现学习的基本流程。
