男性，66岁，突发胸痛6小时未缓解，给予硝酸甘油和组织型纤溶酶原激活剂（t-PA）治疗，1天后患者病情稳定，但发现心尖部出现收缩期杂音，未及震颤，应怀疑下述哪种可能性最大（）

A．二尖瓣狭窄 

B．二尖瓣关闭不全 

C．主动脉窦瘤破裂 

D．动脉导管未闭 

E．室间隔缺损

The nurse is caring for a client hospitalized on numerous occasions for complaints of chest pain and fainting spells, which she attributes to her deteriorating heart condition. No relatives or friends report ever actually seeing a fainting spell. After undergoing an extensive cardiac, pulmonary, GI, and neurologic workup, she’s told that all test results are completely negative. The client remains persistent in her belief that she has a serious illness. What diagnosis is appropriate for this client()

A. Exhibitionism.

B. Somatoform disorder.

C. Degenerative dementia.

D. Echolalia.