问题描述：
(C)
DabantownisfamousforgirlsandwindmillswhileLoulanisamyth(神话)inthedesert.TwothousandyearsagobesidethebeautifulandrichLoubuLaketherelayLoulanancientcityoftheSilkRaod.Businessmenfromeverycountrygatheredandthereweredancingparties.EverythingshowsthatpeopleinLoulanlivedarichlifethen.
HowevertwothousandyearslaterthisrichlandsuddenlydisappearedfromthemapofChina.Itbecameanareacoveredwithsandanddeadtreetrunks.
Loulanwasfirst“discovered”byaSwedishmannamedSvenHedinin1900.PeoplefromAmericaBritishJapanandSwedenallsetfoothere.Theninthe1930’saChinesemannamedHuangWenbicametoLoulanforthefirsttime.Hevisitedandstudiedthisareaandfoundmanyrelicsthatwerebeautifullyandcarefullymade.
ItisrecordedthattheancientcityofLoulanwasthecapitaloftheLoulanKingdomduringtheHanandJinDynastiesandcoveredanareaofsome100000sq.metres.Insidethecitytherearetheruinsofgovernmentofficestemplesandotheroldbuildings.Outsidethecitytherearesomedried-upriversandmuchfarmland.InthepastcenturymanythingshavebeendugupthereincludingHanDynastycoinsmirrorsandmanyothersofGreekandRomantimes.AllthesethingsshowthatalotofbusinessbetweentheEastandWestoncetookplacethere.
LyingonthenorthwestoftheLopNurareatheLoulanKingdomisnowalifelessareawithendless“forests”ofmounds(小丘)whicharen’teasilyseeninotherpartsoftheworld.Itsmysteryhasbeenattractingmanypeoplefrommanycountries.
46.ThefirstpersontosetfootinLoulaninthe20thcenturywas______.
A.aEuropean B.anAmerican C.anEnglishman D.aJapanese
47.BeforeLoulandisappeared________.
A.peoplefromAmericaandJapanhadsetfootthere.
B.muchbusinessbetweentheEastandWesthadtakenplacethere.
C.alifelessareawithlotsofmoundscouldeasilybeseenthere
D.therewerenogovernmentofficesortemples
48.Wecaninferfromthepassagethat_______.
A.Loulanwasdestroyedbytheterribleweatherthere
B.warsbetweenDynastiesmadeLoulandisappear
C.foreignerscametoLoulananddestroyedit
D.
