43,827 免費圖片適用於學生

生物學水下魚海上生活動物野生動物水海洋研究男生

Student Girl Waving Hello

school boy

孩子們學校

School boy

孩子們學校

school boy

孩子們學校

school boy

孩子們學校

School boy

孩子們學校

School children

孩子們學生

大學生

Boy and girl siblings in the woods

孩子們森林

香港中學生首次自發罷課 (1)

A medical illustration of drug–resistant, Streptococcus pneumoniae bacteria. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

電子學细菌

1911 Student Body of the Hopkins School in New Haven, Connecticut

Two laboratory technicians experimenting with virus. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

MERS Coronavirus Particles–Colorized transmission electron micrograph showing particles of the Middle East respiratory syndrome coronavirus that emerged in 2012. Original image sourced from US Government department: The National Institute of Allergy and Infectious Diseases. Under US law this image is copyright free, please credit the government department whenever you can”.

Giant Gourami - Osphronemus goramy

Smallmouth bass-1

Fantail darter-1

Nudibranch Party

Alewife-1

Fish in display pond-1

Texas Blind Salamander-2

A medical illustration of vancomycin–resistant, Enterococci sp. bacteria. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

電子學细菌

Transmission electron microscopic (TEM) image, revealed ultrastructural details exhibited by numerous, Coxiella burnetii bacteria, which cause the worldwide disease known, as Q fever. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Giant Cusk-Eel - Spectrunculus grandis

Devils Hole pupfish-1

Texas Blind Salamander-2

Sockeye salmon-1

Texas Blind Salamander-2

Rainbow Trout-6

Pallid sturgeon-2

Largemouth bass-2

Moapa Dace

Alewife-2

Juvenile Dolly Varden

Chinook Salmon

Transparent Fish Closeup

Allegheny Crayfish

Texas Blind Salamander-3

White-pink Jellyfish

Brook trout-1

Dolly Varden-4

Allegheny Crayfish-3

Pallid Sturgeon-1

Erimyzon tenuis

Hammerhead Shark

Brook trout-1

野生動物魚

Dolly Varden-1

Ash Meadows Speckled Dace-2

Juvenile yellow perch

Muskellunge

Smallmouth Bass-3

surgeon at work in operating room

醫療藥物骨組織

Medical Doctor Man

Interdental Brush

Female student thinking smartphone

Rainbow Trout-1

Suwannee bass nests in a river bank-1

A scientist studying new methods for detecting foodborne bacteria directly from a patient sample. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A field epidemiologist performing a mouth swab inside the beak of a white duck, in order to carry out an infectious disease investigation. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Pathway to the student union

建築物學生

Biologists search for Fountain Darter-5

Ash Meadows Amargosa pupfish-1

A scientist preparing samples for mass spectrometry in order to determine the presence of a bacterial toxin. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A medical illustration of Clostridioides difficile bacteria, formerly known as Clostridium difficile. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Female student

Medical Doctor

Students couple laptop computer

Woman girl smartphone student

Female student book library

Ash Meadows Amargosa pupfish-1

Hooked Smallmouth bass

Safety Razor

Motivated Student Boy

小男孩學生

Schoolboy Under the Cherry Blossoms

Young girl with long hair is sitting in airport.

Presenting to a

非裔美國人人

Medical Doctor Woman

香港中大學生會及學聯成員抗議要求校董會主席換屆不容政治干預

Student Girl Thinks of Money

Kinkajou

哺乳动物動物

Tyrannosaurus Dinosaur Skull

Tyrannosaurus

培養皿

實驗室科學

2 Rear view of young woman with luggage in airport

Presenting to a

非裔美國人人

Young woman with luggage in airport near flight timetable

Microscope slide

Little Girl is Studying

Aldabra Giant Tortoise

2014-07-16 國立成功大學畢業生張芷菱

Medical Doctor with a Yellow Card

Pills

醫療藥物藥品

Local health centers experimenting with coronavirus. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

醫療藥物科學

A photomicrograph of Candida albicans fungal spores. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

School boy

孩子們學校

school boy

孩子們學校

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