51.雙腳踝部明顯浮腫,平躺時表示呼吸困難,要求立即坐起,病人最可能是患有下列何種疾病?(A)鬱血性心衰竭(congestive heart failure)(B)慢性阻塞性肺病(chronic obstructive pulmonary disease)(C)急性心肌梗塞(acute myocardial infarction)(D)哮喘(asthma)