题目内容

执行MOV AX ，WDAT 指令，要使AX寄存器中内存为3412H，不能采用下列哪种数据定义？

A. DSEG SEGMENT WDAT EQU WORD PTR BDAT BDAT DB 12H，34H DSEG ENDS
B. DESG SEGMENT BDAT DB 12H，34H WDAT = WORD PTR BDAT DSEG ENDS
C. DESG SEGMENT WDAT EQU THIS WORD BDAT DB 12H，34H DSEG ENDS
DESG SEGMENT BDAT DB 12H，34H WDAT LABEL WORD DESG EBDS

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