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單項選擇題
A.JNZ.65H B.JC.40H C.CLR.C D.NOP
A.MOV@DPTR，A B.MOVCA，@A+PC C.MOVX@Ri，A D.MOVA，@Ri
A.PUSHACC B.MULAB C.JNC35H D.XCHA，R4
A.PUSHACC B.JNC35H C.XCHA，R4 D.MULAB
A.LJMP3000H B.MOVXA，@R0 C.ADDCA，#50H D.XCHA，40H
A.ADDA，30H B.ANLA，@R2 C.CJNEA，#80H，40H D.MOVR4，20H
A.F9H B.F8H C.FAH D.06H
A.LCALL4005H B.DJNZ10H，05H C.CJNEA，#18H D.JNZFCH
A.MOVXA，@R1 B.MOVCA，@A+DPTR C.MOVCA，@A+PC D.MOVA，@R1
A.MOV68H，A B.MOVA，#68H C.MOVA，R5 D.MOVA，@R1
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