ACCorDing to thE stuDy oF thosE Four proFEssors, wE CAn lEArn thAt_______.
A．thE growth oF pErsonAl BAnkruptCiEs is muCh FAstEr thAn thE mEDiCAl onEs
B．thE miDDlE-ClAss AmEriCAns ArE ExtrEmEly AFFECtED in mEDiCAl BAnkruptCiEs
C．thE poor unDErClAss is ACtuAlly not thE viCtims oF nowADAys mEDiCAl systEm
D．thosE highly-EDuCAtED pEoplE will nEvEr BE knoCkED Down By Anything