A.<1% B.1%~2% C.3%~4% D.5%~10% E.10%以上
A.左心房增大壓迫喉返神經(jīng) B.左心室增大壓迫喉返神經(jīng) C.右心室增大壓迫喉返神經(jīng) D.主動脈擴張壓迫喉返神經(jīng) E.肺動脈擴張壓迫喉返神經(jīng)