已知DS=ES=2000H執(zhí)行下列程序: MOV SI,301H MOV DI,300H MOV CX,4 CLD REP MOVSB INT 3 DS:301H DB 22H,33H,44H,55H 程序運行后結果為:(20300H)=()H(20301H)=()H (20302H)=()H(20303H)=()H