6,464 resultados para prueba

  • 6117-08558335

    Portrait confident creative businessman in office

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  • 679-08173321

    Police evidence including finger print, DNA swab and results.

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  • 619-08124438

    Chinese student thinking about homework

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  • 6117-07586801

    High school students taking test in classroom

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  • 6113-07731171

    Students and teacher examining globe in classroom

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  • 641-07847971

    Students in classroom having an exam

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  • 6117-08058615

    Graphic designer reviewing proofs in office

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  • 698-07611773

    High school girls reading books at table in library

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  • 649-07585091

    Female cell biologist holding a flask containing stem cells, cultivated in red growth medium, to investigate disease

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  • 619-08857777

    Caucasian girl writing in notebook at school

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  • 698-07588271

    High school boy studying at desk in classroom

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  • 619-08568179

    Mixed race father and son using technology at table

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  • 698-07588242

    High school girl studying at desk in classroom

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  • 698-07611776

    Teenage girls reading book while using laptop at table in school library

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  • 619-06399672

    Children writing in classroom

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  • 698-07588361

    Female student studying on steps at university

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  • 649-07585089

    Cell biologist holding a flask containing stem cells, cultivated in red growth medium, to investigate diseases

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  • 619-06936615

    Mixed race girl holding paper with A+ grade

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  • 698-07588381

    Happy young university student relaxing on table in common room

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  • 649-07118819

    Portrait of scientist with dna molecular model

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  • 649-08125921

    Scientist viewing sample on glass slide through microscope for medical testing

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  • 6117-08558332

    Creative businessman brainstorming in office

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  • 649-06353115

    Forensic scientist with gun in box

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  • 6117-08182286

    Architects meeting and discussing blueprints in office

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  • 698-07588013

    Thoughtful girl looking away while studying at home

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  • 6124-08170783

    Publishers talking in sunny office

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  • 6117-08182284

    Architects meeting and discussing blueprints in office

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  • 679-06673851

    Performance testing. Athlete running on a treadmill while his performance and oxygen consumption are measured.

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  • 653-05976172

    A BB Gun and BB cartridges in evidence bags

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  • 679-07608187

    Vials of blood samples.

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  • 649-08479614

    Laboratory worker testing oil samples

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  • 649-07804023

    Hair sample collected from crime scene for genetic testing in laboratory

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  • 6117-07586776

    High school students taking test in classroom

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  • 649-06353124

    Forensic students examining fingerprints

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  • 6117-07586771

    High school students taking test in classroom

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  • 649-08306952

    Female scientist testing samples in laboratory

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  • 619-06399774

    Hispanic boy doing homework

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  • 649-08306951

    Scientists testing samples in laboratory

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  • 679-06673850

    Performance testing. Athlete running on a treadmill while his performance and oxygen consumption are measured.

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  • 619-07609194

    Hispanic boy doing homework on floor

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  • 649-08060565

    Engineer inspecting automotive engine in test facility

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  • 6109-06007577

    Smiling elementary teacher with students on blackboard behind her

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  • 6117-08558241

    Serious scientist examining specimen in laboratory

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  • 6117-07586766

    High school students taking test in classroom

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  • 6117-08558201

    Scientist conducting scientific experiment in GMO laboratory

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  • 600-02201432

    Police Taking Fingerprints

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  • 649-06353095

    Fingerprint on screen in forensic lab

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  • 649-06353164

    Forensic scientist at shattered window

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  • 6117-08880438

    Creative designers reviewing proofs and paperwork on office floor

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  • 6121-08228975

    Schoolboy cheating on a test in classroom, Munich, Bavaria, Germany

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  • 619-07609195

    Hispanic boy doing homework on floor

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  • 6109-07497755

    Profile view of young male scientist looking at small test tube in laboratory

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  • 698-06374980

    Happy young woman studying with friends in university canteen

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  • 649-08703412

    Scientist viewing a DNA profile experiment in a laboratory

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  • 679-05996512

    Forensic evidence. DNA samples, autoradiogram and evidence bag.

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  • 649-06845240

    Close up of teenage girl examining test tube

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  • 649-06353122

    Forensic students examining fingerprints

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  • 649-06041595

    Chemistry students examining models

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  • 6117-06941618

    Sustainable energy engineer working on blueprints

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  • 649-07710333

    Pipette dropping a solution into a vial, used for storing liquid during chemical or biological research

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  • 632-08130287

    Scientist examining test tube

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  • 619-09012049

    Smiling Asian mother and son sitting on bench using laptop

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  • 649-06845248

    Portrait of scientist with lab equipment and machinery

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  • 641-07733743

    Female food analyst working in laboratory

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  • 679-07151134

    Genetic research.

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  • 632-08130042

    Scientist scrutinizing test tubes containing blue liquid in lab

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  • 649-07804024

    DNA sample swab collected from crime scene for genetic testing in laboratory

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  • 619-08631447

    African American student writing in classroom

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  • 6109-06007579

    Smiling elementary teacher standing in classroom with books in her arms

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  • 649-06489957

    Student using tablet computer in class

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  • 6117-06941106

    Professor helping students in college science lab

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  • 649-08060588

    Stem cell research, nuclear transfer of embryonic stem cells from petri dish used in cloning for medical research

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  • 649-07279845

    Forensic scientist holding evidence bag from crime scene in laboratory

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  • 649-07559960

    Female scientist monitoring plant samples in lab

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  • 649-03797144

    Hand holding sample in front of monitor

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  • 619-09012050

    Smiling Asian mother and son using laptop

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  • 698-07588227

    High school student studying in classroom

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  • 649-06041612

    Students with grades cheering at school

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  • 679-07962152

    DNA autoradiogram being held over a rows of dna samples in laboratory.

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  • 6117-08514918

    Scientist analyzing chemical solution in test tube

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  • 632-08130047

    Scientist examining test tube in lab

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  • 6117-08558587

    Adult education student taking math test

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  • 649-08060569

    Metallurgist working with electron microscope in automotive test facility

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  • 619-08607152

    Mixed race scientist examining samples in laboratory

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  • 6113-07808793

    Students passing note between desks during their GCSE exam

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  • 698-07611769

    Full length of female students giving high-five in school library

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  • 6113-07762457

    Lawyer showing documents to jury in court

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  • 619-07842358

    Students taking test in classroom

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  • 6117-08182285

    Architects meeting and discussing blueprints in office

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  • 679-07608192

    Blood samples in test tube rack.

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