-
心脏骤停时，______系统的症状出现得最早、最显著。
-
中心静脉压正常值为___________cmH2O，它可反映___________、右心室功能及周围血管张力的变化。
-
Withouttransportation,therecouldbenotrade.Withouttrade,therecouldbenotownsandcities.Townsandcities aretraditionallythe___16___ofcivilization.Therefore,transportationhelpsmakecivilization___17___.
Throughoutmostoftheprehistoricperiod,peoplelivedbyhunting,fishing,and___18___wildplants.They hadnobeastsofburden,wheeledvehicles,orroads.Peopletraveled___19___andcarriedtheirinfantsand belongingsstrappedtotheirbacksorheads.Loadstooheavyforonepersontocarrywerestrappedtoapoleandcarriedbytwopeople.
___20___,peoplelearnedthattheycoulddragloadsalongthegroundonsledges.Duringlateprehistoric times,peoplebegantobuildsledgeswithrunners. Whenpeopledevelopedagricultureandbegantoestablish___21___settlements,tradebetweensettlements
startedtodevelop,whichcreatedaneedforbetter___22___oftransportation.Thedonkeyandtheox,whichhad beentamedforfoodproductsandfarmwork,helped___23___thisneed.Theuseofdonkeysandoxenasbeastsof burdenenabledpeopleto___24___heavierloadsthantheycouldbefore.
Peoplealsobegantodevelopwatertransportationduringprehistorictimes.Theybuiltraftsofsuch__25____aslogs orreeds.Later,peoplelearned___26___tomakedugoutsandcanoes.Peoplepaddledtheseearlycraftwiththeirhands
orpropelledthemwithpaddlesor__27____.
Thewheelwasinventedabout3500B.C.andsailboatabout3200B.C.Wheeledvehiclesandsailingvessels___28___transportation.Butthespeedoftransportationimprovedonly___29___overthecenturies.Inventorsproducedthefirstengine-___30___vehiclesduringthelate1700’sandtheearly1800’s.This developmentmarkedthebeginningofarevolutionintransportationthathascontinuedtothepresent.
16.A.highlightsB.pinpointsC.headquartersD.centers
17.A.possibleB.acceptableC.practicalD.typical
18.A.growingB.gatheringC.wateringD.moving
19.A.inturnB.ateaseC.onfootD.forfun
20.A.AllthewhileB.ForawhileC.IntimeD.Ontime
21.A.temporaryB.permanentC.regularD.steady
22A.knowledgeB.judgmentC.standardsD.means
23.A.recognizeB.developC.meetD.reduce
24.A.bearB.moveC.shareD.lift
25.A.materialsB.stylesC.itemsD.types
26.A.whereB.whenC.howD.as
27.A.polesB.sailsC.currentsD.winds
28.A.demonstratedB.revolutionizedC.witnessedD.initiated
29.A.considerablyB.continuouslyC.swiftlyD.slightly
30.A.poweredB.controlledC.orientedD.related
-
根据环境因素的性质可将人类环境分为自然环境和______两大类。
-
传染病病人管理须做到五早，即_____、_____、____、____、____和____。
-
甲状腺功能亢进症行放射性碘治疗前给予()药物治疗1~3个月至症状减轻。
-
护理伦理学的理论基础，包括美德论、________、________和关怀论。
-
凡颈椎损伤或怀疑颈椎损伤的伤员，均应常规使用______固定伤员颈部。
-
接受化疗后最常见的毒性反应是_________、_________、_________.
-
服含铁质的补血药后，不宜服用()、()。