患者喘息咳嗽反复发作30余年，每年寒冷季节发病。本次因外感复发，加重1周入院。患者现症见喘息胸闷，动则喘甚，呼多吸少，气不得续，夜卧难平，神疲畏寒，汗出肢冷，面唇青紫，双下肢轻度浮肿，舌淡苔薄，脉沉弱。其中医的诊断及辨证应为下列哪项（）

A.喘证-肾不纳气

B.咳嗽-肺肾阴虚

C.喘证-久喘肺虚

D.咳嗽-痰湿阻肺

E.喘证-风寒闭肺

Dr. Smith was always__________ the poor and the sick, often providing them with free medical care.

A．tended by

B．absorbed in

C．reminded of

D．concerned about