这道题怎么做：阅读理解.阅读理解.HaveyouevergonetravelingonthetrainthatwasnamedaftertheletterD?NamedaftertheletterD,thenewtrainsrunatspeedsof200to250kilometersonehour.Thesearemuchfa

　　这道题怎么做：阅读理解.

　　阅读理解. HaveyouevergonetravelingonthetrainthatwasnamedaftertheletterD?

　　NamedaftertheletterD,thenewtrainsrunatspeedsof200to250kilometersonehour.Thesearemuch

　　fasterthanZ-typeandT-typetrains.Forexample,itusedtotakepeople12hourstotravelfromShanghaito

　　Beijing.Butnowitonlytakes10hours.Themostinterestingpartofthebullet(子弹头)trainsistherevolving(旋转)seats.Peoplecanadjust(调整)theirseatsastheylike,sothatitiseasyforyoutotalkwithothers

　　aroundyoufacetoface.Thenewtrainsrunbetweenbigcities.Theymakethelongtripsmuchfasterand

　　morecomfortable.

　　Allcoinshavetwosides.However,manypassengersstillwon'tchoosethebullettrainsforsomereasons.

　　Theticketpricesofthebullettrainsaremuchhigher.Foraneasyexample,ahardseatticketfromBeijingto

　　JinanisonlyRMB90forT-typetrains.Butonthebullettrainsalltheseatsaresoft.AndtheycostRMB153to

　　154.Ontheotherhand,thebullettrainsstopatthesmallstationssuchasTianjinonlyforoneminute.1.PassengerswhotaketheD106traininTianjinhavetohurrybecause_______.A.itstopsforthreeminutes

　　B.therearetoomanypassengers

　　C.itrunstoofast

　　D.itstopsforonlyoneminute2.Whatisthemostinterestingpartofthebullettrains?A.Thehardseats.

　　B.Therevolvingseats.

　　C.Thebeautifulcolors.

　　D.Thetraintickets.3.HowlongdoesittaketotravelfromShanghaitoBeijingonabullettrainsnow?A.20hours.

　　B.12hours.

　　C.10hours.

　　D.5hours.4.Thebullettrainsmakethelongtrips_______.A.fasterandmorecomfortable

　　B.moredangerous

　　C.moreboring

　　D.cheaper5.Thebullettrainsmakethelongtrips_______.A.fasterandmorecomfortable

　　B.moredangerous

　　C.moreboring

　　D.cheaper