单项选择题
Which cleaning product should be used for the inside of a computer？（）
A.glass cleaner
B.a simple ammonia and water solution followed by an antistatic solution
C.a bleach solution followed by water
D.compressed air
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Whenreplacingapowersupply，whatMUSTthetechnicianobserve？（）
A.voltage
B.current
C.wattage
D.resistance -
单项选择题
WhichIPblockisdesignatedforprivatenetworkuse？（）
A.127.0.x.x
B.169.0.x.x
C.190.100.x.x
D.192.168.x.x -
单项选择题
WhichprocessorusesaSlot1configuration？（）
A.AMD Duron
B.AMD Thunderbird
C.Intel Pentium
D.Intel Pentium II
