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によって AntonLozovoyVideo 3840x2160 px
ストックビデオID: 289963994
Hyperlapse of kid looking at burning orange powder
A medical scientist in a lab studies malaria
CDC Center for Disease Control scientist work in strains of viral meningitis in the lab
Cute african american schoolgirl with teacher learning elementary science
CDC scientist in appropriate personal protective equipment isolates and tests for highly pathogenic avian influenza
Close up of the student studying seed under the microscope
Selective focus of african american scientist in glasses looking at blood sample in flask
Cropped view of scientist taking blood sample on glass
Cropped view of scientist setting up microscope
Close up view of african american scientist in glasses using microscope
Selective focus of african american scientist in glasses using microscope with sunlight on background