英语文献综述描述研究现状Word文件下载.docx
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英语文献综述描述研究现状Word文件下载.docx
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Smith,1994)
Numerousstudieshaveattemptedtoexplain....(forexample,Smith,1996;
Kelly,1998;
Johnson,2002)
Recentevidence
suggests
that....(Smith,1996;
Jones1999;
Johnson,2001)
Recently,invitrostudies
haveshown
thatT.thermophylusEFTucan....(Pateletal.,1997;
Jonesetal.,1998).
SurveyssuchasthatconductedbySmith(1988)
haveshownthat
....
Severalattempts
havebeenmade
to....(Smith,1996;
Severalstudies
haverevealed
thatitisnotjustXthatactson.....(Smith,1996;
Jones....
SeveralbiographiesofHarris
havebeenpublished.Smithpresentsan....account,whilstJones....
SeveralstudiesinvestigatingX
havebeencarriedout
on....
Datafromseveralsources
haveidentified
theincreasedmorbidityandmortalityassociatedwithobesity
Previousstudies
havereported
....(Smith,1985;
Jones,1987;
Johnson,1992).
PreviousresearchfindingsintoX
havebeen
inconsistentandcontradictory
(Smith,1996;
Jones1999,....
Anumberofstudies
havefound
that....(Smith,2003;
Jones,2004).
Twentycohortstudyanalyseshaveexaminedtherelationshipbetween....
Atleast152case-controlstudiesworldwidehaveexaminedtherelationshipbetween.....
Otherstudieshaveconsideredtherelationship....
TherelationshipbetweenXandY
hasbeenwidelyinvestigated
(Smith,1985;
Jones,1987,....
ThecausesofXhavebeenwidely
investigated
(Jones,1987;
Smith,1994).
ThegeologyofX
hasbeenaddressed
inseveralsmall-scaleinvestigationsand.....
Xs
havebeenidentifiedas
majorcontributingfactorsforthedeclineofmanyspecies
(1).
X
hasalsobeenshown
toreversetheanti-inflammatoryeffectsofglucocorticoidsinmurine-inducedarthritis(11).
Ithasbeensuggested
thatlevelsofXareindependentofthesizeoftheY(Smithetal.,1995)
It
has
conclusivelybeenshownthat
XandYincreaseZ(Smithetal.,1999;
Jones,2001....
hasbeendemonstrated
thatahighintakeofXresultsindamageto....(Smith,1998;
....
Referencetocurrentstateofknowledge
Arelationshipexistsbetweenanindividual'
sworkingmemoryandtheirabilityto......(Jonesetal.,1998).
GMvarietiesofmaizeareabletocross-pollinatewithnon-GMvarieties(Smith,1998;
Jones,1999).
Thereisanunambiguousrelationshipbetweenspendingoneducationandeconomicdevelopment(Rao,1998).
XisoneofthemostintensereactionsfollowingCHD(Lane,2003).
MIFhasbeenfoundtoopposetheanti-inflammatoryactionsofXonY(Alourfi,2004).
Referencetosingleinvestigationsinthepast:
researcher(s)assentencesubject
Smith(1999)
found
that
aslevelsofliteracyandeducationofthepopulationrise....
showed
thatreducingXto190oCdecreased....(seefigure2).
demonstrated
thatwhenthemaximumtemperatureisexceeded....
Jonesetal.(2001)
thedifferentialimpactofformalandnon-formaleducationon....
analysed
thedatafrom72countriesandconcludedthat....
reviewed
theliteraturefromtheperiodandfoundlittleevidenceforthisclaim.
interviewed
250undergraduatestudentsusingsemi-structuredquestionnaires.
studied
theeffectsofCytochromeP450onunprotectednervecells.
performed
asimilarseriesofexperimentsinthe1960stoshowthat....
carriedout
anumberofinvestigationsintothe....
conducted
aseriesoftrials
inwhich
hemixedXwithdifferentquantitiesof....
measured
bothcomponentsofthe....
labelled
thesesubsetsas....
examined
theflowofinternationalstudents....
identified
parentsofdisabledchildrenas....
used
asurveytoassessthevarious
Wangetal.(2004)
haverecentlydeveloped
amethodologyfortheselectiveintroductionof......
Referencetosingleinvestigationsorpublicationsinthepast:
timeframeprominent
In1975,Smithetal.
published
apaper
theydescribed....
In1990Pateletal.
thatreplacementofH2Owithheavywaterledto....
Thirtyyearslater,Smith(1974)
reported
threecasesofCandidaAlbicanswhich....
Inthe1950s
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- 英语 文献 综述 描述 研究 现状
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