电工电子学概论习题

电工电子学概论习题

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时间:2019-08-23

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1、byGroup1ImpressionofLondonTrafficandtravelOnMay1stabout11o’clockAM,wefourgatheredinShanghaiPudongInternationalAirportandstartedourjourney.LondonLondonisthecapitalofEnglandandofGreatBritain,thepoliticalcenteroftheCommonwealth,andamajorport,65km.fromthemouthofth

2、eRiverThames.Administrativelyitconsistsof:①theCityofLondon(area2.5sq.km.,pop.5,400),theoriginalnucleus,retainingamedievalsystemofgovernmentofcourtsofaldermenandanelectedlordmayor.②GreaterLondon,ametropolitancounty(pop.7,111,500),madeupof12InnerLondonboroughs(a

3、rea303sq.km.,pop.2,809,100)and20OuterLondonboroughs(area570sq.km.,pop.4,302,400)hotelItwas4:20intheafternoonwhenwearrivedinLondon.Sowewentstraighttothehotelwhichwebookedyesterday.StollavenueofEnglandBritishMuseumTheBritishMuseumwasestablishedin1753,largelybase

4、donthecollectionsofthephysicianandscientistSirHansSloane.Themuseumfirstopenedtothepublicon15January1759inMontaguHouseinBloomsbury,onthesiteofthecurrentmuseumbuilding.Itsexpansionoverthefollowingtwoandahalfcenturieshasresultedinthecreationofseveralbranchinstitu

5、tions,thefirstbeingtheBritishMuseum(NaturalHistory)inSouthKensingtonin1887.Until1997,whentheBritishLibraryopenedtothepublic,theBritishMuseumwasuniqueinthatithousedbothanationalmuseumofantiquitiesandanationallibraryinthesamebuilding.ItspresentchairmanisSirJohnB

6、oydanditsdirectorisNeilMacGregor.BuckinghamPalaceBuckinghamPalaceistheofficialLondonresidenceoftheBritishmonarch.LocatedintheCityofWestminster,thepalaceisasettingforstateoccasionsandroyalhospitality.IthasbeenarallyingpointfortheBritishpeopleattimesofnationalre

7、joicingandcrisisTheTowerofLondon.NotmuchisknownabouttheearliestLondonBridgealthoughit'slocationisthoughttobenearthepresentone.ThesecondbridgeawoodenoneexistinginSaxontimesseemstohavegivenrisetothenurseryrhyme'LondonBridgeisfallingdown'whichitdidin1014.In1176th

8、efirststonebridgewasconstructed.Housessprunguponbothsidesofthebridgeandstooduntilitwaspulleddownin1831,makingwayforamoreelegant,classicstructure.Thisbridgewasreplacedin1967asitcoul

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