Question

which treatment would most likely be used for cardiovascular disease?
pacemaker
radiation
blood transfusions
bone marrow transplants

Explanation:

起搏器（pacemaker）常用于治疗心血管疾病，用于调节心脏节律。辐射常用于癌症治疗；输血用于治疗失血等情况；骨髓移植用于治疗血液系统疾病等。

Answer:

pacemaker