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若BX=1000H,DS=2000H,(21000H)=12H,(21001


若BX=1000H,DS=2000H,(21000H)=12H,(21001H)=34H。执行MOV SI,[BX]指令后SI=()

  • A1234H
  • B3412H
  • C1000H
  • D0010H
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