A.10% B.15% C.20% D.25% E.30%
A.前下縱隔 B.中縱隔 C.后縱隔 D.前上縱隔 E.縱隔各部均可發(fā)生
A.后縱隔 B.中縱隔 C.前縱隔 D.中后縱隔 E.縱隔各部均可發(fā)生