某放大器空載時，輸出電壓為2V，接上負載電阻RL=1K時，測得輸出電壓為0.5V，則該放大器的輸出電阻為()
A、1KΩC
暫無解析
妊娠婦女睡眠時應多取
新生兒復蘇過程中，以下哪一項是最重要和最有效的措施?
翻譯訓練：大學生創業
近年來大學生創業(entrepreneurship)問題越來越受到社會的關注,因為受過多年教育的大學生屬于高級知識分子,他們背負著社會的種種期望。在社會經濟繁榮發展的同時,大學生創業也成為新氣象。現代大學生有創新精神,有對傳統觀念和傳統行業挑戰的信心和欲望,而這種創新精神也成為大學生創業的動力源泉,成為成功創業的信心基礎。大學生懷揣創業夢想,努力打拼,實現自己的理想,證明自己的價值。
Passage4
Questions16to20arebasedonthefollowingpassage:
IrecentlywroteanautobiographyinwhichIrecalledmanyoldmemories.Oneofthemwasfrommyschooldays,whenourninthgradeteacher,MissRaber,wouldpickoutwordsfromtheReader’sDigesttotestourvocabulary.
Today,morethan45yearslater,Ialwayscheckout“ItpaystoEnrichYourWordPower”firstwhentheDigestcomeseachmonth.Iamimpressedwiththatidea,wordpower.Reader’sDigestknowsthepowerthatwordshavetomovepeople—toentertain,inform,andinspire.TheDigesteditorsknowthatthebigwordisn’talwaysthebestword.Takejustoneexample,aQuotableQuoteformtheFebruary1985issue:”Timeisaplayfulthing.Itslipsquicklyanddrinksthedaylikeabowlofmilk.”
Nineteenwords,onlytwoofthemmorethanonesyllable,yethowmuchtheyconvey!That’susuallyhowitiswithReader’sDigest.Smallandsimplecanbeprofound.
AschairmanofafoundationtorestoretheStatueofLiberty,I’vebeenmakingalotofspeecheslately.Itrytokeepthemfairlyshort.Iusesmallbutvividwords:wordslike“hope”,“guts”,“faith”,“dreams”.ThosearewordsthatmovepeopleandsaysomuchaboutthespiritofAmerica.
Don’tgetmewrong.I’mnotagainstusingbigwords,whenitisrighttodoso,butIhavealsolearnedthatasmallwordcanworkasmallmiracle—ifit’srightword,intherightplace,attherighttime.It’sa“secret”thatIhopeneverforget.
16.Thepassageismainlyabout.
A.oneofthemanyoldmemories
B.usingsimplewordstoexpressprofoundideas
C.Reader’sDigestandschoolspeeches
D.howtomakeeffectivespeeches
17.ItseemsthatReader’sDigestisamagazinepopularwith.
A.peopleofallagesB.teenagersC.schoolteachersD.elderlyreaders
18.Theexampletheauthorgivesinthesecondparagraphmightmean.
A.onespendshisdayplayinganddrinking
B.don’twasteyourtimeasonedoes
C.timeslipseasilyifyoudon’tmakegooduseofit
D.timeisjustlikedrinkingmilkfromabowl
19.Theauthor’s“secret”is.
A.toavoidusingbigwordsatanytime
B.tousewordsthathavethepowertomovepeople
C.toworkamiraclebyusingasmallword
D.tousesmallandsimplewordswherepossible
20.Accoedingtotheauthor,well-chosenwordscangivepeople.
A.hope,courageandideas
B.confidence,determinationandstrength
C.pleasure,knowledgeandencourage
D.entertainment,informationandpower
Questions16to20arebasedonthefollowingpassage:
理想的全科醫療醫患關系屬于
