42,648 免费图片适用于学生

性质植物植物学生长绿色树叶叶子臉动物植物群

Leaves

leaves

leaves

leaves

Potted snake plants - Sansevieria trifasciata

Doctor

医疗药物健康

Child Homework

Whale Shark at Georgia Aquarium in Atlanta. Original image from Carol M. Highsmith’s America, Library of Congress collection.

(Martine) Nurse is Holding an O sign

Graph is Going Up

Glasses

医疗药物企业

Cap And Gown

School Students Eating Lunch

学校的孩子友情

Schoolboy is Raising His Hand

Teacher is at the Chalkboard

Lionfish

Close up of lady's slipper orchid Paphiopedilum

Woman is Taking a Bath

MRI Head Scan

Woman using a damp sponge to clean dust collected on a window sill. 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”.

Rocket Blasts Off

Shelf fungus-1

Nunavut, in northern Canada, the largest and newest federal territory of the country.

Woman is Bathing in a Hot Spring

(Casey) Medical Doctor Woman is in Love

Woman is Bathing

(Tim) Medical Doctor Man

(Melanie) Medical Doctor with a Patient

Boy is Playing Tennis

Lupine Flowers

31 Thailand

Ochre sea star at Olympic National Park

Baluga Whales at Mystic Aquarium. Original image from Carol M. Highsmith’s America, Library of Congress collection.

Blowing Dandelion

蒲公英花卉

Two Student Girl Friends

Angry Student Girl

Caviahue lake, Patagonia, Neuqen. Land of dinosaurs

Ladybug

毛毛虫瓢虫

Woman is learning flower arrangement

Syringe and Needle

Business Man is Thinking

实业家企业

Students Male Friends

(Trevor) Surgery Medical Doctor

Bass Fish

Chickadee

Coneflower

(Martine) Nurse

handsome young man reading

(Trevor) Surgery Medical Doctor

护理人员医生

Explorer Boy

Piatnitzkysaurus

爬行动物动物

Syringe and Needle

Boy is Playing Tennis

A Group of Children Students

孩子们学生

Boy with Toothbrush and Cup

Fly

Father and Son are Bathing

Boy is Bathing

Teen girl in jeans

卡通片女孩

Green herb leaves on white

Leaves

Green Leaf

(Joshua) Medical Doctor is Pointing

33 Thailand

Green Herbs on White

Green Salad Leaves

Succulent green leaf

Green leaf

Bonsai Tree

Salad leaves background

30 Thailand

Single isolated leaf on a white background

Single isolated leaf on a white background

Close up of lady's slipper orchid Paphiopedilum

Industrial smoke

塔式建筑植物

Industrial smoke

塔式建筑植物

Aula Leopoldina, baroque hall

建筑物马赛克

Indiana bats-1

哺乳动物蝙蝠

Indiana bats-2

哺乳动物蝙蝠

Hibernating indiana bats

哺乳动物蝙蝠

Team surgeon at work on operating in hospital

Indiana bat survey

哺乳动物蝙蝠

work for students

Team surgeon at work on operating in hospital

Photomicrograph of a human blood smear. 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”.

抽象艺术科学

Sign (Biohazard)

Officer in Patrol Boat on the water

$Nurse wearing green latex gloves to protect herself. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.$

Chef's finishing their bread

MRI Scan

护理人员医学

Dinosaur cartoon

Stretcher carrying the Injured

Flying dinosaur

medical spectacles

医疗药物机器人

Tropical Fish

Asia Bento

College doctor medical school

Boy is Showing a Pencil

Medical Doctor Man

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