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主权是一个国家独立自主地处理内外事务的权力。（)

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Giventhefollowingscript，whydoestheoutputcomeoutasanemptylineinsteadof"dog"（）!/bin/ksh$VAR=dogecho"${VAR}"

A. The$VARvariablewasnotexported.
B. The$VARshouldhavebeensetasVAR.
C. dogneedsdoublequotesarounditwhensetting$VAR.
D. The{}shouldnotbearoundVARintheechocommand.

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Acustomer’sdatacenterhasallPOWER4+systems，andtheyplantoaddthreenewp5-570systems.Theywillbepurchasinganew7310-CR2HMCtosupportthePOWER5systems.WhatisakeyrequirementthattheyneedtoplanforwiththenewHMC？（）

Adesk，asitnotrackmountable
B. EthernetconnectionstothePOWER5systems
C. SerialconnectionstothePOWER5systems
D. USBconnectionsforthekeyboardandmouse

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Which of the following sequence of command extracts the tenth image form a tape in tape device rmt1？（）

A. tet1 -f /dev/rmt1.0 fsf 9; tar -xv file 10
B. tet1 -f /dev/rmt1.1 fsf 10; tar -xv file 10
C. tet1 -f /dev/rmt1.1 fsf 9; dd if = /dev/rmt1.1 of=file 10
D. tet1 -f /dev/rmt1.0 fsf 9; dd if =file10 of /dev/rmt1.0

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AftertheLEDdisplayisflashing888andthesystemisrebooted,whichofthefollowingcommandsshouldbeusedtogatherdumpinformation？（）

A. snap
B. errpt
C. kdb
D. trace

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