学生驾驶员在单飞之前必须在其飞行经历记录本上，有授权教员的签字，证明其在单飞日期之前______天内接受了所飞型号航空器的训练。
A
暂无解析
进入产程中的子宫收缩的特征，下列哪项是错误的
Passage3
Questions11to15arebasedonthefollowingpassage:
Thecowboyistheheroofmanymovies,.Heis,eventoday,asymbolofcourageandadventure.Butwhatwasthelifeofthecowboyreallylike?
Thecowboy’sjobisclearfromthewordcowboy.Cowboyweremenwhotookcareofcowsandothercattle.ThecattlewereintheWestandinTexas.PeopleinthecitiesoftheEastwantedbeefthesecattle.Trainscouldtakethecattleeast.Butfirstthecattlehadtogettothetrains.Partofthecowboy’sjobwastotakethecattlehundredsofmilestotherailroadtown.Thetripswerecalledcattledrivers.Acattledriveusuallytookseveralmonths.Cowboysrodeforsixteenhoursaday.Becausetheyrodesomuch,eachcowboybroughtalongabouteighthorses.Acowboychangedhorsesseveraltimeseachday.
Thecowboyshadtomakesurethatcattlearrivedsafely.Beforestartingonadrive,thecowboysbrandedthecattle.Theyburnedamarkonthecattletoshowwhotheybelongedto.Butthesemarksdidn’tstoprustlers,orcattlethieves.Cowboyshadtoprotectthecattlefromrustlers.Rustlersmadethedangeroustripevenmoredangerous.
Eventhoughtheirworkwasverydifficultanddangerous,cowboysdidnotearnmuchmoney.Theywerepaidbadly.Yetcowboyslikedtheirwayoflife.Theylivedinawildandopencountry.Theylivedalifeofadventureandfreedom.
11.Acowboyisasymbolof.
A.courageandadventureB.ahardlifeandbigpay
C.moviesinthepastD.cowsandothercattle
12.Thecowboys’jobwas.
A.tobeaheroinreallifeB.tobeaheroofthemovie
C.totakecareofcattleD.tobeadangerousrustler
13.Duringacattledriver,cowboystookagroupofcowsfromawildandopencountryto.
A.theWeststatesandTexasB.thecitiesoftheEastStates
C.thepeoplewhoeatbeefincitiesD.therailroadtownshundredmilesaway
14.Ontheirwayofcattledrivers,thecowboysprotectedthecattleby.
A.burningamarkontheircowsB.keepinganeyeoncattlethieves
C.makingthetripmoredangerousD.lookingaftereightcowseachperson
15.Cowboysenjoyedthemselvesbecause.
A.theylikedtheirwayoflifeB.theymadealotofmoney
C.theyhadavarydifficultjobD.theywereheroesinmovies
PartIVTranslation
Thecaptainrealizedthatthementriedtodeceivehimsohemadethemworkveryhardfortherestofthevoyage.(PassageOne)