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作者：Pierre la Rose

Pierre la Rose / Public domain

授权：Public domain

作者：chensiyuan

chensiyuan / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：Unknown author Unknown author

Unknown author Unknown author / Public domain

授权：Public domain

作者：King of Hearts

King of Hearts / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：DraftSaturn

DraftSaturn / CC BY 4.0

授权：CC BY 4.0

作者：Ajay Suresh from New York, NY, USA

Ajay Suresh from New York, NY, USA / CC BY 2.0

授权：CC BY 2.0

作者：Matthew Carter for the Massachusetts Institute of Technology

Matthew Carter for the Massachusetts Institute of Technology / Public domain

授权：Public domain

作者：User:Calvinkrishy~commonswiki

User:Calvinkrishy~commonswiki / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：University of Oxford

University of Oxford / Public domain

授权：Public domain

作者：Chensiyuan

Chensiyuan / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：Yale University

Yale University / Public domain

授权：Public domain

作者：Namkota

Namkota / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：University of California, Berkeley; This SVG file: User:RaphaelQS

University of California, Berkeley; This SVG file: User:RaphaelQS / Public domain

授权：Public domain

作者：Daderot

Daderot / CC0

授权：CC0

作者：University of Michigan

University of Michigan / Public domain

授权：Public domain

作者：AndrewHorne

AndrewHorne / CC BY 3.0

授权：CC BY 3.0

作者：Dm980cam

Dm980cam / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：Diliff

Diliff / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：UCLA

UCLA / Public domain

授权：Public domain

作者：Alton

Alton / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：Unknown author Unknown author

Unknown author Unknown author / Public domain

授权：Public domain

作者：ajay_suresh

ajay_suresh / CC BY 4.0

授权：CC BY 4.0

作者：Cornell University

Cornell University / Public domain

授权：Public domain

作者：sach1tb

sach1tb / CC BY-SA 2.0

授权：CC BY-SA 2.0

作者：Unknown author Unknown author

Unknown author Unknown author / Public domain

授权：Public domain

作者：Michel Alexandre Salim

Michel Alexandre Salim / CC BY-SA 2.0

授权：CC BY-SA 2.0

作者：Johns Hopkins University

Johns Hopkins University / Public domain

授权：Public domain

作者：Art Anderson

Art Anderson / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：Peking University

Peking University / Public domain

授权：Public domain

作者：galaygobi

galaygobi / CC BY 2.0

授权：CC BY 2.0

作者：University of Chicago

University of Chicago / Public domain

授权：Public domain

作者：Rick Seidel

Rick Seidel / CC BY 2.0

授权：CC BY 2.0

作者：University of Toronto

University of Toronto — official university identity; rights retained by the university

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作者：Jphillips23

Jphillips23 / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：New York University

New York University / Public domain

授权：Public domain

作者：Jonathan71

Jonathan71 / CC BY-SA 2.5

授权：CC BY-SA 2.5

作者：Tsinghua University

Tsinghua University / Public domain

授权：Public domain

作者：User:Yaoleilei

User:Yaoleilei / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：University of Wisconsin-Madison

University of Wisconsin-Madison / Public domain

授权：Public domain

作者：w_lemay

w_lemay / CC BY-SA 2.0

授权：CC BY-SA 2.0

作者：AlexD , new version by Gnesener1900

AlexD , new version by Gnesener1900 / Public domain

授权：Public domain

作者：Diliff

Diliff / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：University of Science and Technology of China

University of Science and Technology of China — official university identity; rights retained by the university

授权：保留所有权利（非开放许可）

作者：Ryanli

Ryanli / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：University of Washington

University of Washington / Public domain

授权：Public domain

作者：Martin Kraft

Martin Kraft / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：Northwestern University

Northwestern University / Public domain

授权：Public domain

作者：Madcoverboy ( talk )

Madcoverboy ( talk ) / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：University of Texas at Austin

University of Texas at Austin / Public domain

授权：Public domain

作者：Kurt Kaiser

Kurt Kaiser / CC0

授权：CC0

作者：Unknown author Unknown author

Unknown author Unknown author / Public domain

授权：Public domain

作者：Bobak Ha'Eri

Bobak Ha'Eri / CC BY 3.0

授权：CC BY 3.0

作者：Zhejiang University

Zhejiang University — official university identity; rights retained by the university

授权：保留所有权利（非开放许可）

作者：Zhangzhugang

Zhangzhugang / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：东京大学

东京大学 / Public domain

授权：Public domain

作者：Kakidai

Kakidai / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：The University of Minnesota and the State of Minnesota .

The University of Minnesota and the State of Minnesota . / Public domain

授权：Public domain

作者：Ben Franske

Ben Franske / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：University of Illinois at Urbana–Champaign

University of Illinois at Urbana–Champaign / Public domain

授权：Public domain

作者：Daniel Schwen

Daniel Schwen / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：Philip Allfrey

Philip Allfrey / CC BY-SA 2.5

授权：CC BY-SA 2.5

作者：Theoden sA

Theoden sA / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：University of California, San Diego

University of California, San Diego / Public domain

授权：Public domain

作者：Alex Hansen

Alex Hansen / CC BY 2.0

授权：CC BY 2.0

作者：Shanghai Jiao Tong University

Shanghai Jiao Tong University / Public domain

授权：Public domain

作者：This illustration was made by Peter Potrowl . Please credit this with : © Peter Potrowl in the immediate vicinity of the image. A link to my website sitemai.eu would be much appreciated but isn't mandatory. An email to Peter Potrowl would be appreciated too. Do not copy this image illegally by ignoring the terms of the license below, as it is not in the public domain. If you would like special permission to use, license, or purchase the image please contact me Peter Potrowl to negotiate terms. More free pictures in my website . Donations are accepted here and here . ( talk )

This illustration was made by Peter Potrowl . Please credit this with : © Peter Potrowl in the immediate vicinity of the image. A link to my website sitemai.eu would be much appreciated but isn't mandatory. An email to Peter Potrowl would be appreciated too. Do not copy this image illegally by ignoring the terms of the license below, as it is not in the public domain. If you would like special permission to use, license, or purchase the image please contact me Peter Potrowl to negotiate terms. More free pictures in my website . Donations are accepted here and here . ( talk ) / CC BY 3.0

授权：CC BY 3.0

作者：Duke University, Shep

Duke University, Shep / Public domain

授权：Public domain

作者：Warren LeMay from Cullowhee, NC, United States

Warren LeMay from Cullowhee, NC, United States / CC0

授权：CC0

作者：Original: Fudan University Vector: Prcmise

Original: Fudan University Vector: Prcmise / Public domain

授权：Public domain

作者：California Institute of Technology

California Institute of Technology / Public domain

授权：Public domain

作者：Canon.vs.nikon

Canon.vs.nikon / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：南京大学

南京大学 — official university identity; rights retained by the university

授权：保留所有权利（非开放许可）

作者：猫猫的日记本

猫猫的日记本 / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：Ohio State University

Ohio State University / Public domain

授权：Public domain

作者：Michael Barera

Michael Barera / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：University of North Carolina at Chapel Hill

University of North Carolina at Chapel Hill — official university identity; rights retained by the university

授权：保留所有权利（非开放许可）

作者：(User: Wgreaves )

(User: Wgreaves ) / Public domain

授权：Public domain

作者：Unknown author Unknown author

Unknown author Unknown author / Public domain

授权：Public domain

作者：Doc2129

Doc2129 / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：Unknown author Unknown author

Unknown author Unknown author / Public domain

授权：Public domain

作者：George Chriss

George Chriss / CC BY 2.5

授权：CC BY 2.5

作者：Sun Yat-sen University

Sun Yat-sen University — official university identity; rights retained by the university

授权：保留所有权利（非开放许可）

作者：created by Daniel Berthold

created by Daniel Berthold / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：UCSF

UCSF / Public domain

授权：Public domain

作者：Bruce Damonte and Rafael Viñoly Architects

Bruce Damonte and Rafael Viñoly Architects / CC BY 2.5

授权：CC BY 2.5

作者：patent of arms for James McGill (1744–1813) granted by England's Garter-King-at-Arms of 1922

patent of arms for James McGill (1744–1813) granted by England's Garter-King-at-Arms of 1922 / Public domain

授权：Public domain

作者：D. Benjamin Miller

D. Benjamin Miller / CC0

授权：CC0

作者：Boston University

Boston University / Public domain

授权：Public domain

作者：Fletcher6

Fletcher6 / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：Pittsburgh Panthers

Pittsburgh Panthers / Public domain

授权：Public domain

作者：Crazypaco at English Wikipedia

Crazypaco at English Wikipedia / CC BY 2.5

授权：CC BY 2.5

作者：Unknown author Unknown author

Unknown author Unknown author / Public domain

授权：Public domain

作者：CjayD

CjayD / CC BY 2.0

授权：CC BY 2.0

作者：University of Maryland, College Park

University of Maryland, College Park / Public domain

授权：Public domain

作者：Bgervais

Bgervais / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：University of Hong Kong

University of Hong Kong — official university identity; rights retained by the university

授权：保留所有权利（非开放许可）

作者：Baycrest

Baycrest / CC BY-SA 2.5

授权：CC BY-SA 2.5

作者：University of Sydney

University of Sydney — official university identity; rights retained by the university

授权：保留所有权利（非开放许可）

作者：No machine-readable author provided. KittySaturn~commonswiki assumed (based on copyright claims).

No machine-readable author provided. KittySaturn~commonswiki assumed (based on copyright claims). / Public domain

授权：Public domain

作者：GarterKingOfArms

GarterKingOfArms / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：Gracchus250

Gracchus250 / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：Rutgers University

Rutgers University / Public domain

授权：Public domain

作者：Zeete

Zeete / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：ETH Zürich

ETH Zürich / Public domain

授权：Public domain

作者：Roland zh

Roland zh / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：Logo_University_of_Heidelberg.png : * Logo_unihd.jpg : Uni Heidelberg derivative work: Tou-x ( talk )

Logo_University_of_Heidelberg.png : * Logo_unihd.jpg : Uni Heidelberg derivative work: Tou-x ( talk ) / Public domain

授权：Public domain

作者：4028mdk09

4028mdk09 / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：University of Manchester

University of Manchester — official university identity; rights retained by the university

授权：保留所有权利（非开放许可）

作者：DrPhoenix

DrPhoenix / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：User:Sengkang

User:Sengkang / Copyrighted free use

授权：Copyrighted free use

作者：N509FZ

N509FZ / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：京都大学、小川录郎、川崎清、久谷政树

京都大学、小川录郎、川崎清、久谷政树 / Public domain

授权：Public domain

作者：Canconier

Canconier / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：Mik Hartwell

Mik Hartwell / CC BY-SA 2.0

授权：CC BY-SA 2.0

作者：Unknown author Unknown author

Unknown author Unknown author / Public domain

授权：Public domain

作者：Zereshk

Zereshk / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：reviczky

reviczky / Public domain

授权：Public domain

作者：Fil Brit

Fil Brit / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：Texas A&M University

Texas A&M University / Public domain

授权：Public domain

作者：Srujan1001

Srujan1001 / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：Brown University

Brown University / Public domain

授权：Public domain

作者：No machine-readable author provided. Dale182 assumed (based on copyright claims).

No machine-readable author provided. Dale182 assumed (based on copyright claims). / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：Michigan State University

Michigan State University / Public domain

授权：Public domain

作者：No machine-readable author provided. Lovelac7~commonswiki assumed (based on copyright claims).

No machine-readable author provided. Lovelac7~commonswiki assumed (based on copyright claims). / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：Ludwig-Maximilians-Universität München

Ludwig-Maximilians-Universität München / Public domain

授权：Public domain

作者：Diego Delso

Diego Delso / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：University of Florida

University of Florida / Public domain

授权：Public domain

作者：Porsche997SBS

Porsche997SBS / CC0

授权：CC0

作者：University of Colorado

University of Colorado / Public domain

授权：Public domain

作者：MECU ( MECU ≈ talk )

MECU ( MECU ≈ talk ) / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：Shadowssettle; Lobsterthermidor (element: File:MartletSable (English).svg); Eugenio Hansen, OFS (element: File:Arvore003.svg); Xavigivax (element: File:Cetro.svg); jpgibert (element: File:Meuble_héraldique_Poisson_bondissant.svg)

Shadowssettle; Lobsterthermidor (element: File:MartletSable (English).svg); Eugenio Hansen, OFS (element: File:Arvore003.svg); Xavigivax (element: File:Cetro.svg); jpgibert (element: File:Meuble_héraldique_Poisson_bondissant.svg) / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：Diliff

Diliff / CC BY 3.0

授权：CC BY 3.0

作者：Vanderbilt University

Vanderbilt University / Public domain

授权：Public domain

作者：Stablenode

Stablenode / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：Huazhong University of Science and Technology

Huazhong University of Science and Technology — official university identity; rights retained by the university

授权：保留所有权利（非开放许可）

作者：User:Vmenkov

User:Vmenkov / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：Original University of California seal: probably Tiffany & Co,; This SVG file: Casecrer

Original University of California seal: probably Tiffany & Co,; This SVG file: Casecrer / Public domain

授权：Public domain

作者：Arlen from SF, CA

Arlen from SF, CA / CC BY 2.0

授权：CC BY 2.0

作者：University of Virginia

University of Virginia / CC0

授权：CC0

作者：Aaron Josephson; cropped by Ibn Battuta

Aaron Josephson; cropped by Ibn Battuta / Public domain

授权：Public domain

作者：Daniel Mayer

Daniel Mayer / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：Purdue University

Purdue University / Public domain

授权：Public domain

作者：Abhijitsathe

Abhijitsathe / CC BY 3.0

授权：CC BY 3.0

作者：Carnegie Mellon University

Carnegie Mellon University / Public domain

授权：Public domain

作者：Dllu

Dllu / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：University of Utah

University of Utah / Public domain

授权：Public domain

作者：University of Utah

University of Utah / CC BY 3.0

授权：CC BY 3.0

作者：University of Iowa

University of Iowa — official university identity; rights retained by the university

授权：保留所有权利（非开放许可）

作者：Billwhittaker ( talk ) at en.wikipedia

Billwhittaker ( talk ) at en.wikipedia / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：Imperial College London

Imperial College London / Public domain

授权：Public domain

作者：Shadowssettle

Shadowssettle / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：University of California, Santa Barbara

University of California, Santa Barbara / Public domain

授权：Public domain

作者：Coolcaesar

Coolcaesar / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：University of Queensland

University of Queensland — official university identity; rights retained by the university

授权：保留所有权利（非开放许可）

作者：The original uploader was Gaz at English Wikipedia .

The original uploader was Gaz at English Wikipedia . / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：Nankai University

Nankai University — official university identity; rights retained by the university

授权：保留所有权利（非开放许可）

作者：Amazingloong

Amazingloong / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：Humboldt-Universität Berlin

Humboldt-Universität Berlin / Public domain

授权：Public domain

作者：VitVit

VitVit / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：Georgia Tech/Francis P. Smith

Georgia Tech/Francis P. Smith / Public domain

授权：Public domain

作者：User:TheCustomOfLife

User:TheCustomOfLife / Public domain

授权：Public domain

作者：Hogweard

Hogweard / Public domain

授权：Public domain

作者：An Siarach at English Wikipedia

An Siarach at English Wikipedia / Public domain

授权：Public domain

作者：Shandong University

Shandong University — official university identity; rights retained by the university

授权：保留所有权利（非开放许可）

作者：猫猫的日记本

猫猫的日记本 / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：Arizona State University

Arizona State University / Public domain

授权：Public domain

作者：The original uploader was Schwnj at English Wikipedia .

The original uploader was Schwnj at English Wikipedia . / CC BY-SA 2.5

授权：CC BY-SA 2.5

作者：Jilin University

Jilin University — official university identity; rights retained by the university

授权：保留所有权利（非开放许可）

作者：Hogweard

Hogweard / Public domain

授权：Public domain

作者：Simon Cobb

Simon Cobb / CC0

授权：CC0

作者：Citobun

Citobun / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：Original raster image was excerpted from the source file, as specified above. Vectorized by the user User:Nudimmud .

Original raster image was excerpted from the source file, as specified above. Vectorized by the user User:Nudimmud . / Public domain

授权：Public domain

作者：Deuterium 001

Deuterium 001 / CC BY 3.0

授权：CC BY 3.0

作者：University of California, Irvine

University of California, Irvine / Public domain

授权：Public domain

作者：No machine-readable author provided. Complex01 assumed (based on copyright claims).

No machine-readable author provided. Complex01 assumed (based on copyright claims). / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：GaryJetner

GaryJetner / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：No machine-readable author provided. Firmatic assumed (based on copyright claims).

No machine-readable author provided. Firmatic assumed (based on copyright claims). / Public domain

授权：Public domain

作者：Uppsala university

Uppsala university / Public domain

授权：Public domain

作者：This image was produced by me, David Castor ( user:dcastor ). The pictures I submit to the Wikipedia Project are released to the public domain. This gives you the right to use them in any way you like, without any kind of notification. This said, I would still appreciate to be mentioned as the originator whenever you think it complies well with your use of the picture. A message to me about how it has been used would also be welcome. You are obviously not required to respond to these wishes of mine, just in a friendly manner encouraged to. (All my photos are placed in Category:Images by David Castor or a subcategory thereof.)

This image was produced by me, David Castor ( user:dcastor ). The pictures I submit to the Wikipedia Project are released to the public domain. This gives you the right to use them in any way you like, without any kind of notification. This said, I would still appreciate to be mentioned as the originator whenever you think it complies well with your use of the picture. A message to me about how it has been used would also be welcome. You are obviously not required to respond to these wishes of mine, just in a friendly manner encouraged to. (All my photos are placed in Category:Images by David Castor or a subcategory thereof.) / CC0

授权：CC0

作者：Unknown author Unknown author

Unknown author Unknown author / Public domain

授权：Public domain

作者：Mediacom EPFL

Mediacom EPFL / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：Indiana University

Indiana University / Public domain

授权：Public domain

作者：MARELBU

MARELBU / CC BY 3.0

授权：CC BY 3.0

作者：Shadowssettle; Eugenio Hansen, OFS (element: File:SVG coat of arms elements - books.svg); F5JMH (element: File:Héraldique meuble Sirène miroir 1.svg); David Liuzzo (element: File:Heraldic Lion 02.svg)

Shadowssettle; Eugenio Hansen, OFS (element: File:SVG coat of arms elements - books.svg); F5JMH (element: File:Héraldique meuble Sirène miroir 1.svg); David Liuzzo (element: File:Heraldic Lion 02.svg) / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：Simonham

Simonham / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：WinterforceMedia WinterE229

WinterforceMedia WinterE229 / Public domain

授权：Public domain

作者：Unknown author Unknown author

Unknown author Unknown author / Public domain

授权：Public domain

作者：University of Vienna

University of Vienna / Public domain

授权：Public domain

作者：C.Stadler/Bwag

C.Stadler/Bwag / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：Unknown author Unknown author

Unknown author Unknown author / Public domain

授权：Public domain

作者：APK

APK / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：The original uploader was Pgp688 at English Wikipedia .

The original uploader was Pgp688 at English Wikipedia . / Public domain

授权：Public domain

作者：Michael Fernandes

Michael Fernandes / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：TCD Arms.png : Kwekubo derivative work: Kwekubo

TCD Arms.png : Kwekubo derivative work: Kwekubo / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：Imelda Casey

Imelda Casey / CC BY-SA 4.0

授权：CC BY-SA 4.0

作者：Unknown author Unknown author

Unknown author Unknown author / Public domain

授权：Public domain

作者：CEphoto, Uwe Aranas

CEphoto, Uwe Aranas / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：Kurt Barnett

Kurt Barnett / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：J Bar

J Bar / CC BY-SA 3.0

授权：CC BY-SA 3.0

作者：Dartmouth College

Dartmouth College / Public domain

授权：Public domain

作者：Kane5187

Kane5187 / Public domain

授权：Public domain

作者：Utrechy University

Utrechy University / Public domain

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作者：Tianjin University

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作者：东京工业大学

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作者：03 at Japanese Wikipedia

03 at Japanese Wikipedia / CC BY-SA 3.0

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作者：Gottfried Wilhelm Leibniz Universität Hannover

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Zereshk / CC BY 2.5

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作者：University of Guelph

University of Guelph / Public domain

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作者：The original uploader was Fuzzy510 at English Wikipedia .

The original uploader was Fuzzy510 at English Wikipedia . / Public domain

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作者：J Bar

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作者：Magnus Manske

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作者：Carleton University

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