在以太网中,使用ARP协议的目的是:

A、获取端口和IP地址的对应关系
B、获取IP地址和MAC地址的对应关系
C、获取MAC地址和端口的对应关系
D、获取IP地址和域名的对应关系
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正确答案:

B

答案解析:

暂无解析

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人际关系分类中不包括

A、物缘关系
B、血缘关系
C、地缘关系
D、学缘关系
E、机缘关系

活跃期停滞为活跃期宫口扩张停止大于()小时。

PartIVTranslation

Notmanyofthechildrenoffertheirfatherssomepresents.ButtheAmericanfathersstillthinktheyaremuchbetterfatedthanthefathersofmanyothercountries,whohavenotevenadayfortheirsakeinnameonly.(PassageThree)

患者,女性,36岁,因类风湿性关节炎引起关节疼痛,在服用阿司匹林时,护士嘱其饭后服用的目的是

A、减少对消化道的刺激
B、提高药物的疗效
C、降低药物的毒性
D、减少对肝的损害
E、避免尿少时析出结晶

PartIIICloze

Directions:Therearetwentyblanksinthefollowingpassage.Foreachblanktherearefourchoices.ChoosetheonethatbestfitsintothepassageandthenmarksyouranswerontheAnswerSheet.

Beforethe20thcenturythehorseprovideddaytodaytransportationintheUnitedStates.Trainswereusedonlyforlong-distancetransportation.

Todaythecaristhemostpopular61oftransportationinalloftheUnitedStates.Ithascompletely62thehorseasameansofeverydaytransportation.Americansusetheircarsfor6390percentofallpersonal64.

MostAmericansareableto65cars.

Theaveragepriceofa66madecarwas1050in1950,1740in1960andupto1750671975.DuringthisperiodAmericancarmanufacturerssetabout68theirproductsandworkefficiency.

Asaresult,theyearlyincomeofthe69familyincreasedfrom1950to197570thanthepriceofcars.Forthisreason71anewcartakesasmaller72ofafamily’stotalearningstoday.

In195173ittook8.1monthsofanaveragefamily’s74tobuyanewcar.In1962anewcar758.3ofafamily’sannualearnings.By1975itonlytook4.7576income.Inaddition,the1975carsweretechnically77tomodelsfrompreviousyears.

The78oftheautomobileextendsthroughouttheeconomy79thecarissoimportanttoAmericans.Americansspendmoremoneyto80theircarsrunningthanonanyotheritem.

61.A.kindsB.meansC.meanD.types

62.A.deniedB.reproducedC.replacedD.ridiculed

63.A.hardlyB.nearlyC.certainlyD.somehow

64.A.tripB.worksC.businessD.travel

65.A.buyB.sellC.raceD.see

66.A.quicklyB.regularlyC.rapidlyD.recently

67.A.onB.inC.behindD.about

68.A.raisingB.makingC.reducingD.improving

69.A.unusualB.interestedC.averageD.biggest

70.A.slowestB.equalC.fasterD.lessthan

71.A.bringingB.obtainC.boughtD.purchasing

72.A.partB.halfC.numberD.side

73.A.clearlyB.proportionallyC.percentageD.suddenly

74.A.incomeB.workC.plansD.debts

75.A.usedB.spendC.costD.needed

76.A.months’B.dollarsC.familyD.year

77.A.famousB.superiorC.fastestD.purchasing

78.A.runningB.noticeC.influenceD.discussion

79.A.thenB.asC.soD.which

80.A.startB.leaveC.keepD.repair

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