（22）在Visual FoxPro中有如下程序：*程序名：TEST .PRG*调用方法：DO TESTSET TALK OFFCLOSE ALLCLEAR ALLmX = "Visual FoxPro "mY = "二级"DO SUB1 WITH mX?mX+mYRETURN*子程序：SUB1.PRGPROCEDURE SUB1PARAMETERS mX1LOCAL mXmX ="Visual FoxPro DBMS 考试"mY ="计算机等级"+mYRETURN执行命令DO TEST后，屏幕的显示结果为A)二级Visual FoxProB)计算机等级二级Visual FoxPro DBMS考试C)二级Visual FoxPro DBMS考试D)计算机等级二级Visual FoxPro