Most psychologists deeply believe that it is just______difficult to change a person’s way of thinking as it does to rectify his deep-rooted habits.

A．as

B．than

C．so

D．more

患者，男性，64岁。慢性咳嗽、咳痰、偶有喘息十余年，活动后心悸、呼吸困难7d。查体：颈静脉怒张，肝大有压痛，下肢水肿，呼吸22/min，心率115/min。应首先考虑

A．风湿性心脏病
B．心肌炎
C．心力衰竭
D．慢性肺源性心脏病
E．冠状动脉硬化性心脏病