题目内容

What has Nautilus Minerals done with deep sea mining?

A. It has made great investment in the mining machines.
B. It has initiated the scientific exploration of the deep sea.
C. It has made critical contributions to the deep sea assessment.
D. It has put some energy into analyzing the deep sea ecosystem.

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What do we learn about deep sea mining?

A. Deep sea mining has generated great benefits to our life.
B. Deep sea mining has posed a serious threat to ocean systems.
Cost-effective technology for deep sea mining has been developed.
D. A perfect penalty system for deep sea mining has been established.

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试指出下列源操作数字段的寻址方式是什么？(1) MOV AX, 0ABH （）(2) MOV AX, BX（）(3) MOV AX, [100H] （）(4) MOV AX, VAL （）(5) MOV AX, [BX]（）(6) MOV AX, ES:[BX] （）(7) MOV AX, [BP] （）(8) MOV AX, [SI] （）(9) MOV AX, [BX+10] （）(10) MOV AX, VAL[BX] （）(11) MOV AX, [BX][SI] （）(12) MOV AX, VAL[BX][SI] （）

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指出下列指令的错误： (1) MOV AH, BX ；（）(2) MOV [BX], [SI] ；（）(3) MOV AX, [SI][DI] ；（）(4) MOV MYDAT [BX][SI], ES:AX ；（）(5) MOV BYTE PTR [BX], 1000 ；（）(6) MOV BX, OFFSET MYDAT [SI] ；（）(7) MOV CS, AX ；（）(8) MOV ECX, AX ；（）

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试说明下述指令中哪些需要加上PTR操作符：BVAL DB 10H，20HWVAL DW 1000H(1) MOV AL，BVAL （）(2) MOV DL，[BX] （）(3) SUB [BX]，2 （）(4) MOV CL，WVAL （）(5) ADD AL，BVAL+1（__ ）

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What has Nautilus Minerals done with deep sea mining?

A. It has made great investment in the mining machines. B. It has initiated the scientific exploration of the deep sea. C. It has made critical contributions to the deep sea assessment. D. It has put some energy into analyzing the deep sea ecosystem.

What do we learn about deep sea mining?

A. It has made great investment in the mining machines.
B. It has initiated the scientific exploration of the deep sea.
C. It has made critical contributions to the deep sea assessment.
D. It has put some energy into analyzing the deep sea ecosystem.