我们要坚持节约资源和保护环境的基本国策，为人民创造良好生产生活环境，努力形成人与自然和谐发展新格局，需要（）。

Imagineyouenteracarwithnosteeringwheel,nobrakeoracceleratorpedals(踏板).Underavoice-activatedcommand,yousayanaddress“Thefastestroutewilltakeus15.3minutes.ShouldItakeit?”Yousay“yes”andyouareonyourway.Thecarrespondsandstartsmovingallbyitself.Allyouhavetodoissitbackandrelax.Howweirdwoulditbeif,onedayinthefuture,everyonehadsuchacar?Nocrazydiving,noinsults,nocuttingin;trafficlawswouldberespectedanddrivingmuchsafer.Ontheotherhand,imaginethecostsavingsforlocalpoliceenforcementandtownbudgetswithoutallthosespeedingandparkingtickets.Anewtechnologyhasthepotentialtochangemodernsocietyinradicalways.There’snoquestionthatself-drivingvehiclescouldbeanenormousbenefit.Thepotentialforsafercarsmeansaccidentstatisticswoulddrop:some94%ofroadaccidentsintheU.S.involvehumanerror.Olderdriversandvisually-orphysically-impairedpeoplewouldgainanewleveloffreedom.Maintainingsafespeedsandbeingelectric,self-drivingcarswoulddrasticallyreducepollutionlevelsanddependencyonnon-renewablefuels.Roadswouldbequieter,peoplesafer.Butwemustalsoconsidertheimpactofthenewtechnologyonthosewhonowdependondrivingfortheirlivelihoods.AccordingtotheU.S.DepartmentofLabor,inMay2015therewere505,560registeredschoolbusdrivers.TheAmericanTruckingAssociationlistsapproximately3.5millionprofessionaltruckdriversintheU.S.Thecompaniesdevelopingself-drivingvehiclesshouldbepartneringwithstateandfederalauthoritiestoofferretrainingforthismassiveworkforce,manyofwhomwillbedisplacedbythenewtechnology.Thisissimilartowhat’shappeninginthecoalandoilindustries,asituationthatfuelsmuchofthecurrentpoliticaldiscontentinthiscountry.Newtechnologieswill,andshould,bedeveloped.Thisishowsocietymovesforward.However,progresscan’tbeone-sided.Itisnecessaryforthecompaniesandstateagenciesinvolvedtoconsidertheethicalconsequencesofthesepotentialchangestobuildabetterfutureforall.Whatdoestheauthorsuggestbusinessesandthegovernmentdo?

差动放大电路中所谓共模信号是指两个输入信号()

以下哪些是校园一信通能进行的缴费服务?

非_______利组织的运作并不是为了产生利益，同时具有志愿性、非政治性等重要特征。横线处应该选用的字是。

效率反应的是“正确的做事”

犯罪行为的两种基本表现形式是（）。

用二维表来表示实体及实体之间联系的数据模型是()。

2.Thesimplesttypeofregisterisadataregister,whichisusedforthetemporarystorageofa“byte”ofdata.

3.Thefieldcanbeviewedasthecombinationofanelectricfieldandamagneticfield.

4.Microwavesareelectromagneticwaveswithwavelengthslongerthanthoseofgigahertz(gHz)frequencies,butrelativelyshortforradiowaves.

5.Inanyradiosystem,theallocatedbandwidthisalwayslimited.

6.Withtheincreasinguseofcomputerstheusageandneedofdigitalsignalprocessinghasincreased.

7.Duringacall,otherusercanusethesamefrequencyband.

8.ThemainapplicationsofDSPareaudiosignalprocessing,audiocompression,digitalimageprocessing,videocompression,speechprocessing,speechrecognition,digitalcommunications,radar,sonar,seismology,andbiomedicine.