According to this passage, unemployment may ______

A．cause people to lose touch with reality

B．completely destroy people's life patterns

C．lessen interaction with people

D．reduce people's chances of promotion

患者，中年男性，有咳嗽、发热、体重减轻。查体有左锁骨上淋巴结肿大，伴胸腔积液。行积液检查。

若积液CEA／血清CEA>4．3，多提示下列何种疾病（）

A.癌性积液

B.结核性积液

C.胸膜炎

D.风湿性积液

E.充血性心力衰竭