[单项选择] A SAN needs to undergo disruptive maintenance， which will effect a hosted production system with multiple applications and related volume groups， one of which， datavg， resides on the SAN. There is one spare disk in the system but it is smaller than datavg. How can application outages and risk of corruption be minimized？（）
A. Stop the applications in all data volume groups and shut the system down during the outage period.
B. Stop the applications in datavg，unmount all datavg filesystems，varyoff datavg，and export datavg.
C. Stop the applications in datavg，unmount all datavg filesystems，and reduce datavg by the SAN disks.
D. Use the ’cpvg’ command with the -z option to copy and compress datavg to different physical volumes.

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[名词解释]DI直接教学模式

[单项选择]对于以下程序段 AGAIN：MOV ES：[DI]，AL INC DI LOOP AGAIN可以用指令( )完成相同的功能。
A. REPMVOSB
B. REPLODSB
C. REPSTOSB
D. REPESCASB

[单项选择]有下列程序段 AGAIN： MOV ES：[DI]，AL INC DI LOOP AGAIN 下列指令中( )可完成与上述程序段相同的功能。
A. REP MOVSB
B. PEP LODSB
C. REP STOSB
D. REPE SCASB

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[单项选择]对于下列程序段： AGAIN：MOV ES：[DI]，AL INC DI LOOP AGAIN 可用指令______完成相同的功能。 ( )
A. REP MOVSB
B. REP LODSB
C. REP STOSB
D. REPE SCASB

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[简答题]若DS=4500H，DI=1000H，COUNT=A8H，指令MOV AX，[DI+COUNT]中，源操作数的有效地址EA和物理地址各为多少？

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[单项选择]假设(DI)=148FH，(EBX)=12345678H，执行MOV[DI]，EBX指令后，DS：148FH存储单元中的数据是
A. 12H
B. 34H
C. 56H
D. 78H

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[简答题]比较JMP[DI]与JMP FAR PTR[DI]指令的操作有何却别。

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[判断题]量距离的命令是DI。

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[单项选择]执行指令MOV AX，[BX][DI]，如果(DS)=2100H， (BX)=0158H，(DI)=10A5H，则物理地址=( )。
A. 11FDH
B. 221FDH
C. 0158H
D. 32FFH

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[单项选择]MOV AX，[BX][DI]，如果(DS)=2100H，(BX)=0158H，(DI)=10A5H，则物理地址=( )。
A. 11FDH
B. 221FDH
C. 0158H
D. 32FFH

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[单项选择]Which of the following expressions manifest the directive function of language

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[单项选择]The passage says that until recently scientists disagreed with the idea ______.
A. that there are mysterious forces in the universe
B. that man cannot discover what forces "really" are
C. that there are serf - evident principles
D. that we can discover why things behave as they do

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