这题从哪入手啊

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< align=left 0cm 0pt; TEXT-INDENT: 27pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>在1994年的“机器学习与计算学习理论”的国际会议上，参加会议的280名代表都收到会议组织者发给的一枚徽章，徽章的标记为“＋”或“－”（参加会议的名单及得到的徽章见附表）。会议的组织者声明：每位代表得到徽章“＋”或“－”的标记只与他们的姓名有关，并希望代表们能够找出徽章“＋”与“－”的分类方法。 由于客观原因，有１４名代表（见附表）没能参加此次会议。按照你的方法，如果他们参加会议，他们将得到什么类型的徽章？
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>附表１：参加会议的名单及得到的徽章
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Naoki Abe - Myriam Abramson + David W. Aha
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Kamal M. Ali - Eric Allender + Dana Angluin
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Chidanand Apte + Minoru Asada + Lars Asker
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Javed Aslam + Haralabos Athanassiou + Jose L. Balcazar
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Timothy P. Barber + Michael W. Barley - Cristina Baroglio
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Peter Bartlett - Eric Baum + Welton Becket
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Shai Ben-David + George Berg + Neil Berkman
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Malini Bhandaru + Bir Bhanu + Reinhard Blasig
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Avrim Blum - Anselm Blumer + Justin Boyan
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Carla E. Brodley + Nader Bshouty - Wray Buntine
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Andrey Burago + Tom Bylander + Bill Byrne
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Claire Cardie + Richard A. Caruana + John Case
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Jason Catlett + Nicolo Cesa-Bianchi - Philip Chan
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Mark Changizi + Pang-Chieh Chen - Zhixiang Chen
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Wan P. Chiang - Steve A. Chien + Jeffery Clouse
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Scott E. Decatur + Gerald F. DeJong + <st1:State w:st="on"><st1:place w:st="on">Kan</st1:place></st1:State> Deng
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Thomas G. Dietterich + Michael J. Donahue + George A. Drastal
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Harris Drucker - Chris Drummond + Hal Duncan
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Thomas Ellman + Tapio Elomaa + Susan L. Epstein
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Bob Evans - Claudio Facchinetti + Tom Fawcett
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Usama Fayyad + Aaron Feigelson + Nicolas Fiechter
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ David Finton + John Fischer + Paul Fischer
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Seth Flanders + Lance Fortnow - Ameur Foued
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Judy A. Franklin + Yoav Freund + Johannes Furnkranz
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Leslie Grate + William A. Greene + Russell Greiner
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Marko Grobelnik + Tal Grossman + Margo Guertin
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Tom Hancock + Earl S. Harris Jr. + David Haussler
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Matthias Heger + Lisa Hellerstein + David Helmbold
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Daniel Hennessy + Haym Hirsh + Jonathan Hodgson
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Robert C. Holte + Jiarong Hong - Chun-Nan Hsu
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Kazushi Ikeda + Masayuki Inaba - Drago Indjic
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Nitin Indurkhya + Jeff Jackson + Sanjay Jain
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Wolfgang Janko - Klaus P. Jantke + Nathalie Japkowicz
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ George H. John + <st1:City w:st="on"><st1:place w:st="on">Randolph</st1:place></st1:City> Jones + Michael I. Jordan
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Leslie Pack Kaelbling + Bala Kalyanasundaram - Thomas E. Kammeyer
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Grigoris Karakoulas + Michael Kearns + Neela Khan
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Roni Khardon + Dennis F. Kibler + Jorg-Uwe Kietz
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Efim Kinber - Jyrki Kivinen - Emanuel Knill
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Craig Knoblock + Ron Kohavi + Pascal Koiran
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Moshe Koppel + Daniel Kortenkamp + Matevz Kovacic
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Stefan Kramer + Martinch Krikis + Martin Kummer
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Eyal Kushilevitz - Stephen Kwek + Wai Lam
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Ken Lang - Steffen Lange + Pat Langley
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Mary Soon Lee + Wee Sun Lee + Moshe Leshno
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Long-Ji Lin - Charles X. Ling + Michael Littman
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ David Loewenstern - Phil Long + Wolfgang Maass
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Bruce A. MacDonald + Rich Maclin - Sridhar Mahadevan
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- J. Jeffrey Mahoney + Yishay Mansour + Mario Marchand
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Shaul Markovitch - Oded Maron + Maja Mataric
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ David Mathias + Toshiyasu Matsushima - Stan Matwin
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Eddy Mayoraz - R. Andrew McCallum - L. Thorne McCarty
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Alexander M. Meystel + Michael A. Meystel - Steven Minton
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Nina Mishra + Tom M. Mitchell + Dunja Mladenic
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ David Montgomery - Andrew W. Moore + Johanne Morin
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Hiroshi Motoda - Stephen Muggleton + Patrick M. Murphy
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Sreerama K. Murthy + Filippo Neri - Craig Nevill-Manning
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Andrew Y. Ng + Nikolay Nikolaev - Steven W. Norton
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Joseph O''''Sullivan + Dan Oblinger + Jong-Hoon Oh
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Arlindo Oliveira + David W. Opitz + Sandra Panizza
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Barak A. Pearlmutter - Ed Pednault + Jing Peng
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Fernando Pereira + Aurora Perez + Bernhard Pfahringer
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ David Pierce - Krishnan Pillaipakkamnatt + Roberto Piola
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Leonard Pitt + Lorien Y. Pratt - Armand Prieditis
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Foster J. Provost - J. R. Quinlan + John Rachlin
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Vijay Raghavan - R. Bharat Rao - Priscilla Rasmussen
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Joel Ratsaby + Michael Redmond + Patricia J. Riddle
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Lance Riley + Ronald L. Rivest + Huw Roberts
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Dana Ron + Robert S. Roos + Justinian Rosca
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ John R. Rose + Dan Roth + James S. Royer
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Ronitt Rubinfeld - Stuart Russell + Lorenza Saitta
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Yoshifumi Sakai + William Sakas + Marcos Salganicoff
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Steven Salzberg - Claude Sammut + Cullen Schaffer
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Robert Schapire + Mark Schwabacher + Michele Sebag
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Gary M. Selzer + Sebastian Seung - Arun Sharma
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Jude Shavlik + Daniel L. Silver - Glenn Silverstein
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Yoram Singer + Mona Singh + Satinder Pal Singh
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Kimmen Sjolander + David B. Skalak + Sean Slattery
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Robert Sloan + Donna Slonim + Carl H. Smith
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Sonya Snedecor + Von-Wun Soo - Thomas G. Spalthoff
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Mark Staley - Frank Stephan + Mandayam T. Suraj
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Richard S. Sutton + Joe Suzuki - Prasad Tadepalli
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Hiroshi Tanaka - Irina Tchoumatchenko - Brian Tester
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Chen K. Tham + Tatsuo Unemi - Lyle H. Ungar
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Paul Utgoff + Karsten Verbeurgt + Paul Vitanyi
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Xuemei Wang + Manfred Warmuth + Gary Weiss
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Sholom Weiss - Thomas Wengerek - Bradley L. Whitehall
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>- Alma Whitten + Robert Williamson + Janusz Wnek
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Kenji Yamanishi + Takefumi Yamazaki + Holly Yanco
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ John M. Zelle - Thomas Zeugmann + Jean-Daniel Zucker
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>+ Darko Zupanic
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>附表2：没能参加此次会议的名单
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>Merrick L. Furst　　　　　　　Jean Gabriel Ganascia　 　　　　William Gasarch
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>Ricard Gavalda　　　　　　　　Melinda T. Gervasio　　　 　　　Yolanda Gil
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>David Gillman　　　　　　　　 Attilio Giordana　　　　　　　　Kate Goelz
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>Paul W. Goldberg　　　　　　　Sally Goldman　　　　　　　　　Diana Gordon
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<P align=left 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-pagination: widow-orphan?>Geoffrey Gordon　　　　 　　　Jonathan Gratch
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