3,340 resultados para prueba

  • 6113-07731171

    Students and teacher examining globe in classroom

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    Publishers talking in sunny office

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

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    Scientist viewing sample on glass slide through microscope for medical testing

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    Portrait smiling casual businesswoman reviewing proofs with businessman in office

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    Portrait of scientist with dna molecular model

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    Businessmen analyzing documents on wall in office

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    Forensic scientist with gun in box

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

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    Scientist examining test tube

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    Hair sample collected from crime scene for genetic testing in laboratory

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    Laboratory worker testing oil samples

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    Professor watching college students taking test in classroom

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    Young male scientist looking at report in an optical laboratory, Freiburg Im Breisgau, Baden-Württemberg, Germany

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    Forensic students examining fingerprints

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    Engineer inspecting automotive engine in test facility

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    Smiling elementary teacher with students on blackboard behind her

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    Forensic scientist at shattered window

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    Fingerprint on screen in forensic lab

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    Schoolboy struggling in educational exam

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

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    College students taking test at desks in classroom

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    Police Taking Fingerprints

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    University students taking exam at classroom

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    Scientist viewing a DNA profile experiment in a laboratory

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

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    Stem cell research. Female scientist examining cell cultures in multiwell tray

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    Close up of teenage girl examining test tube

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

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    Chemistry students examining models

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    Fingerprints on screen in forensic lab

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    Scientist scrutinizing test tubes containing blue liquid in lab

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    Female scientist testing samples in laboratory

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

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    Doctors and scientists looking at screens of Magnetic Resonance Imaging (MRI) 3 Tesla twin speed scanner

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    Smiling elementary teacher standing in classroom with books in her arms

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    Fingerprint on screen in forensic lab

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    Student using tablet computer in class

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    Forensic students examining fingerprints

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    Loupe over fingerprints on arrest form

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    Forensic scientist holding evidence bag from crime scene in laboratory

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    Man typing on laptop and using smartphone at desk

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    Hand holding sample in front of monitor

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    Scientist scrutinizing test tubes in lab

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    University students taking exam in classroom

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    Female scientist monitoring plant samples in lab

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    Portrait of scientist with lab equipment and machinery

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    Lawyer showing documents to jury in court

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    Metallurgist working with electron microscope in automotive test facility

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    Students passing note between desks during their GCSE exam

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    Scientists testing samples in laboratory

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    Scientist examining test tube in lab

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

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    Students with grades cheering at school

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

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    Scientist viewing sample on a glass slide through microscope for medical testing

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    Young female scientist experimenting in laser laboratory

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    Fingerprints on screen in forensic lab

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    Class of schoolchildren doing educational exam

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    Fingerprint on screen in forensic lab

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    Students and teacher examining globe in classroom

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    Newspaper and magnifying glass

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    Loupe over fingerprints on arrest form

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    Check Mark in Box

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    Scientists testing lithium car battery with electric motor car in battery research facility

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    Schoolboy taking exam in classroom, Munich, Bavaria, Germany

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    Three surveillance cameras

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    Engineer measuring manufactured component for accuracy and quality control

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    Scientist filling out evidence bag

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    Scientist writing a sample report in the laboratory of water treatment plant

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    Young businessman explaining document to colleagues in creative office

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    Scientist scrutinizing test tubes in lab

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    Gun in forensic biohazard box

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    Students examining plants with teacher

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    Scientists testing lithium car battery with electric motor car in battery research facility

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    Scientists in lithium ion battery test facility in battery research facility

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    Biology student looking at petri dish

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    Writing letter

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    Portrait of scientist in laboratory

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    Forensic student taking fingerprints

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    Forensic scientist at computer desk

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    Genetic sample and DNA autoradiogram

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    Young man in face mask on gym exercise cycle in altitude centre

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    College students taking test at desks in classroom

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    Professor collecting test from students in classroom

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    Forensic scientist at shattered window

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    Portrait of two scientists in technical laboratory

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    Forensic students examining fingerprints

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    Overhead view of students passing note between desks during their GCSE exam

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