题目内容

ThecontrastratioforanLCDmonitorisBESTdefinedastheratiobetween:（）

A. displayresolutionandbrightness.
B. powerconsumptionandoutputintensity.
C. powersavingsofacomparablecrtmonitorandthelcd.
D. thedarkestandlightestdisplayedoutput.

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（）国家实行中央控制，地方政府在法律上只是中央的分支机构。

A. 总统制国家
B. 单一制国家
C. 议会制国家
D. 联邦制国家

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Auserwouldliketouseanexternalmonitorwiththeirlaptop,butwhenthemonitorispluggedinandconnectedtothelaptop,thescreendoesnotdisplayonthemonitor.WhichofthefollowingistheBESTwaytodisplayanimageonboththemonitorandthelaptop?（）

A. Changeresolutiononlaptop
B. ToggleFNkeyandexternalmonitorkey
C. Tryadifferentmonitortype
D. Tryusingadifferentmonitorcable

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AtechnicianarrivesinGermanyanddiscoversthatwhentheirPCispluggedintotheoutlet,nopowerisreceived.WhichofthefollowingactionsshouldthetechniciantaketogetthePCtooperate?（）

A. ChangetheBIOSsettingstothelocaltime
B. Adjustthevoltageselectorswitch
C. Attacha220voltpowerstripfromthecurrentregiontothePC
D. Attacha120voltbatterybackuppowersupplytothePC

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类型随机抽样可分为（）

A. 固定比倒抽样
B. 等距随机抽样
C. 按比例分类抽样
D. 最优分类抽样

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ThecontrastratioforanLCDmonitorisBESTdefinedastheratiobetween:（）

A. displayresolutionandbrightness. B. powerconsumptionandoutputintensity. C. powersavingsofacomparablecrtmonitorandthelcd. D. thedarkestandlightestdisplayedoutput.

（）国家实行中央控制，地方政府在法律上只是中央的分支机构。

Auserwouldliketouseanexternalmonitorwiththeirlaptop,butwhenthemonitorispluggedinandconnectedtothelaptop,thescreendoesnotdisplayonthemonitor.WhichofthefollowingistheBESTwaytodisplayanimageonboththemonitorandthelaptop?（）

AtechnicianarrivesinGermanyanddiscoversthatwhentheirPCispluggedintotheoutlet,nopowerisreceived.WhichofthefollowingactionsshouldthetechniciantaketogetthePCtooperate?（）

类型随机抽样可分为（）

A. displayresolutionandbrightness.
B. powerconsumptionandoutputintensity.
C. powersavingsofacomparablecrtmonitorandthelcd.
D. thedarkestandlightestdisplayedoutput.