现有: <br /> class Flow { <br /> public static void main(String [] args)  <br /> try { <br /> System. out .print ("before") ;  <br /> doRiskyThing ( )  ;  <br /> System.out.print ("after ") ;  <br /> } catch (Exception fe) { <br /> System.out.print ("catch") ;  <br /> } <br /> System. out .println ( " done") ; <br /> } <br /> public static void doRiskyThing() throws Exception{  <br /> // this code returns unless it throws an Exception           }} <br /> 可能会产生哪两项结果 ?()  
A、 before catch
B、 before after done
C、 before catch done
D、 before after catch