【简答题】试说明ADC AX,0ABH[BX]指令中源操作数和目的操作数使用的寻址方式。
【单选题】Scientists are trying to make ______ investigation.
【单选题】当前值只在定时器指令被执行时才刷新的是哪种时基的定时器?
【简答题】试分别说明下列各指令中源操作数和目的操作数使用的寻址方式: (1) AND AX,0FFH (2) AND BL,[OFFH] (3) MOV DS,AX (4) CMP [SI],CX (5) MOV DS:[0FFH],CL (6) SUB [BP][SI],AH (7) ADC AX,0ABH[BX] (8) OR DX,-35[BX][DI] (9) PUS...
【单选题】Scientists are trying to develop a special material, _______ they will make use of in space.
【单选题】They are trying to make a new product——the world's smallest __________ robot.
【单选题】Embarrassed, I nodded, trying to think of some way to ______ my error.
【判断题】为使定时器正确的定时,100ms定时器只能用于每个扫描周期内同一定时器指令必须执行一次且仅执行一次的场合。
【判断题】S7-200PLC中,100 ms定时器在定时器指令执行时被刷新。
【简答题】ADC AX,0ABH[BX}的源操作数的寻址方式是( ),目的操作数的寻址方式是( )