单项选择题
A.REP LODSB B.REP SCASB C.REP CMPSB D.REP MOVSB
A.OF=1,CF=0 B.OF=1,CF=1 C.OF=0,CF=0 D.OF=0,CF=1
A.AH=01,AL=05 B.AH=1,AL=15 C.AH=0,AL=0FH D.AH=0,AL=05
A.MOV AX,BX B.MOV BX,AX C.PUSH AX POP BX D.MOV CX,AX MOV AX,BX MOV BX,CX
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