关于正常分娩的临床表现，下列哪些不正确：

患者，女性，25岁，身高160cm，体重43kg，“三多一少”症状明显，空腹血糖及尿糖均显著增高，诊断为1型糖尿病，住院后采用速效胰岛素治疗，其饮食总热量应

Milk,butter,andcheeseare____herefromthefarms.

临产开始的标志为规律且逐渐增强的子宫收缩，持续约()秒，间隔5-6分钟，同时伴随进行性宫颈管消失、()和胎先露下降。

Passage4

Questions16to20arebasedonthefollowingpassage:

Successfulinnovationshavedrivenmanyoldertechnologiestoextinctionandhaveresultedinhigherproductivity,greaterconsumptionofenergy,increaseddemandofrawmaterials,acceleratedflowofmaterialsthroughtheeconomyandincreasedquantitiesofmetalsandothersubstancesinuseeachperson.Thehistoryofindustrialdevelopmentaboundswithexamples.

In1870,horsesandmulesweretheprimesourceofpoweronU.S.farms.Onehorseormulewasrequiredtosupportfourhumanbeingsaratiothatremainedalmostconstantformanydecades.Atthattime,hadanationalcommissionbeenaskedtoforecastthepopulationfor1970,itsanswerprobablywouldhavedependedonwhetheritsconsultantswereofaneconomicortechnologicalturnofmind.Hadtheybeen“economists”,theywouldprobablyhaveprojectedthe1970horsesormulepopulationtobemorethan50million.Hadtheybeen“technologists”,theywouldhaverecognizedthatthepowerofsteamhadalreadybeenharnessedtoindustryandtolearnandoceantransport.Theywouldhaverecognizedfurtherthatitwouldbetheprimesourceofpoweronthefarm.Itwouldhavebeendifficultforthemtoavoidtheconclusionthatthehorseandmulepopulationwoulddeclinerapidly.

16.Accordingtothepassage,whatsuppliedmostofthepoweronU.S.farmsin1870?

A.AnimalsB.HumansC.EnginesD.Water

17.WhichofthefollowingisNOTmentionedbytheauthorasaconsequenceofnewtechnologicaldevelopments?

A.Oldertechnologiesdieaway.

B.ThequalityoflifeisImproved.

C.Overallproductivityincrease.

D.Morerawmaterialsbecomenecessary.

18.Itcanbeinferredfromthepassagethatby1870.

A.technologybegantobemoreeconomical

B.thesteamenginehadbeeninvented

C.theU.S.horsepopulationwasabout10million

D.anationalcommissionwasabout10million

19.Inthesecondparagraph,theauthorsuggeststhat“economists”would.

A.plantheeconomythroughyearlyforecasts

B.failtoconsidertheinfluenceoftechnologicalinnovation

C.valuetheeconomiccontributionoffarmanimals

D.consultthenationalcommissionontheeconomy

20.Whatistheauthor’sattitudetowardchangesbroughtonbytechnologicalinnovations?

A.Heisexcitedaboutthem.

B.Heacceptthemasnatural.

C.Heisdisturbedbythem.

D.Hequestionstheirusefulness.