关于正常分娩的临床表现，下列哪些不正确：

正常产程进展的标志是

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

估计失血量中称重法：失血量=【胎儿娩出后接血敷料湿重g-接血前敷料干重g】/()。

某孕妇胎膜早破，评估胎儿状况时，下列临床表现不属于胎儿窘迫的是