摄影图像
矢量图
视频
音频
工具
价格
援助
gb
登录
注册
您好，Guest
登录
注册
摄影图像
矢量图
视频
音频
工具
价格
援助
语言
简体中文
English
Deutsch
Español
Français
Magyar
Italiano
日本語
한국어
Nederland
Język polski
Português (PT)
Русский язык
简体中文
繁體中文
Türkçe
按图搜寻
利用图像取代关键字在123RF上进行搜寻, 试着拖曳图像至灰色区域.
Drag and drop file or
Browse
由此处拉图
全部图像
过滤
排列
贴切
最新
Georank
作品类型
全部
摄影图像
矢量图片
图像形状
全部
纵向
直立
正方形
周视图
安全搜索
人数
全部
更多
图像类型
全部
更新时间
全部
类型
选择性的焦点
样式
鲜艳
顏色
您最多可选择三种颜色
已抠图
不包含这些字词
过滤
测试 图像
925,416 相配
页数
之 9,255
Doctor laboratory assistant in protective suit takes swab from nose of sick patient at home. Laboratory tests for coronavirus concept.
Cassette rapid test for COVID-19 or novel coronavirus
Education Flat Icon Set for Flyer, Poster, Web Site Like Test, Pencil and Stopwatch.
Coronavirus test. Medical worker in protective suite taking a swab for corona virus test, potentially infected young woman
Extended Ishihara color blindness test
test form with pencil
Scientist in laboratory with biological tube for analysis and sampling of Covid-19.
science, chemistry, biology, medicine and people concept - close up of young female scientist holding test tube with blood sample making research in clinical laboratory
education, high school, university, learning and people concept - student writing to notebook at exam or lecture
female college student sitting and exam in the classroom
View of a Young attractive student taking exams
School student's taking exam, thinking hard, writing answer in classroom for educational university admission test and world literacy day concept
Woman pin-up style with eyeglasses and blackboard
Teenage Students Sitting Examination With Teacher Invigilating
Creative vector illustration of eyes test charts with latin letters isolated on background. Art design medical poster with sign. Concept graphic element for ophthalmic test for visual examination.
On the exam. Exam sheet, answer near glasses and pencil on yellow background top view
Coronavirus test. Medical worker in protective suite taking a swab for corona virus test, potentially infected young woman
School student exam in university class with blurry view from back of the classroom of young people having stress doing examination admission test in classroom for education background
Test tube with blood sample for COVID-19 test
Hands together checking pregnancy test kit
high school or university student hands taking exams, writing examination on paper answer sheet optical form of standardized test on desk doing final exam in classroom. Education literacy concept.
Corona virus Covid-19 respiratory sputum specimen swab test tube with gloves
Ophthalmology chart with letter E illustration.
Rapid test covid, you need a drop of blood and the result is ready within 10 minutes
Doctor's hand with medical gloves holds a blood sample
Teenage Students In Uniform Sitting Examination In School Hall
Anxious Teenage Student Sitting Examination In School Hall
Coronavirus test - Medical worker taking a throat swab for coronavirus sample from a potentially infected woman with the isolation gown or protective suits and surgical face masks
Coronavirus test - Medical worker taking a swab for corona virus sample from potentially infected woman with the isolation gown or protective suits and surgical face masks
Blood sample tube positive with COVID-19 or novel coronavirus
Blood test for COVID-19. Examination of a blood sample for the presence of SARS-CoV-2 coronavirus close up
Medical poster with sign. Concept graphic element for ophthalmic test for visual examination. Eyes test charts with latin letters. Creative vector illustration EPS10
Young female student having examination in classroom
Preparation for blood test. Medical technician preparing before taking a blood sample from patient.
close up of woman hands signing or writing a document on a sheet of white paper with black pen in the morning
Retro Television Test Pattern vector illustration.
Set of realistic test-tubes and glass jars of various shape with measuring scale isolated vector illustration
Doctor examined the patient's ear with Otoscope. Patient seem to have problems with hearing.
Medical worker taking a swab for corona virus sample from potentially infected woman with the isolation gown or protective suits and surgical face masks
Male Doctor Wearing Blue Gloves Holding Cotton Swab And DNA Test Tube
Woman holding pregnancy test stick, sitting on the toilet in the bathroom. Close-up view with no face
Portrait of mature red-haired woman lying on gynecological chair while doctor standing beside her
Doctor testing patients urine for medical purposes
Cropped view of doctor in white coat and latex gloves holding marker pen near marked female hand
Student filling out answers to a test with a pencil.
Isometric flat vector concept of online testing, questionnaire form, online education, survey, internet exam.
Students hand holding pencil writing selected choice on answer sheets and Mathematics question sheets. students testing doing examination. school exam
Exams. Cropped view of students writing a test in their exercise books
Cropped view of doctor in latex glove holding test tube with blood
Preparing medical sample for virus research
Positive test result by using rapid test device for COVID-19 virus
Snellen eye chart that can be used to measure visual acuity. Optometry background and eyes health care concept.
Close up image of human eye through eye chart
A doctor in a protective suit taking a nasal swab from a person to test for possible coronavirus infection
closeup of a healthcare worker, wearing blue surgical gloves, put the sample of a nasopharyngeal swab in contact with the reactant, before to insert it into the covid-19 antigen diagnostic test device
Pencil on answer sheets or Standardized test form with answers bubbled. multiple choice answer sheet
Optician measuring women eyes with refractometer in optician shop
Glass laboratory chemical test in lap room. Science concept
Retro tv test screen. Old calibration chip chart pattern
research Concpt on plants, aromatic herbs and flowers in test tubes
Laboratory assistant putting test tubes into the holder, Close-up view focused on the tubes
Immunologist Doing Skin Prick Allergy Test on a Woman’s Arm
Plasma and layers red blood cells
Medical professionals in protective clothing measuring contactless fever at Covid-19 test center during coronavirus epidemic
Asian students taking an exam in class room
education, children and school concept - little student girl taking test
Student filling out answers to exam test answer sheet with pencil. Flat style vector illustration isolated on white background.
Finger clicking on a tablet with multiple-choice questions
Filling out Answers on a Multiple Choice Test
Testing. Closeup of young students sitting in a row and having test in their test-books
Saliva test icon. Medical clipart isolated on white background
Young students having a test in a classroom
Large exam classroom hall full of students at their desks writing a test. Flat style vector illustration isolated on white background.
Coronavirus test - Medical worker taking a throat swab for coronavirus sample from a potentially infected elder man with the isolation gown or protective suits and surgical face masks
Close up shot of pregnancy test with positive result with smiling happy Asian woman in background
Multiple Choice Test
Laboratory glassware set isolated on white background
Rear View Of A Male Doctor Taking A Bodily Fluid Sample For DNA Test
Illustration Featuring the Silhouettes of Students Taking an Exam
education concept - student with computer studying at school
Female hand writing, close up
A/B split testing concept. Marketing or SEO specialist think about A/B split testing.
Wooden blocks spell out TEST on a blue bubble or scantron sheet with a number two yellow pencil.
Student holding pencil writing on paper answer sheet.sitting on chair doing final exam attending in examination on classroom.
Waist up portrait of gynecologist in white lab coat and sterile gloves using vaginal speculum during pelvic exam. She is looking at patient and smiling
writing hands of students at course
Nurse and the elderly, blood collection vector illustration.
Side view portrait of young gynecologist in white lab coat and sterile gloves holding medical vaginal speculum. Red-haired woman with closed eyes lying in gynecological chair
technician of health with blood tubes in the clinical lab for analytical , Medical, pharmaceutical and scientific research and development concept.
Asian Woman doing eye test in clinic
Young schoolboy hard at work in the classroom sitting with his head on his hand reading and writing notes on sheets of white paper
Smear test of saliva for Covid-19 rapid test with medical professionals in the laboratory during a coronavirus epidemic
Close-up Of Silver Pen Over Filled Checkboxes In Form
Close up a scientist working in laboratory to analyze blue extracted of DNA molecules in micro tube plate , clinical or science testing analysis concept
Breast cancer self-palpation set
Checklist on smartphone display, checkboxes with check mark. List of purchases, tasks, to do, wish list on the website concept. Flat outline mobile vector design, premium quality trendy icon.
COVID-19, Corona Virus or Novel coronavirus epidemic disease with doctor or lab technician scientist in PPE Personal Protective Equipment holding preventive plan in hospital laboratory
Laboratory determination of blood type. Blood test.
A boy is working on the test. He is shining full of hope with a smile.
Blood sample tube for laboratory testing, white background
下一页
页数
之 9,255
简体中文
过滤
过滤
