"is"的搜索结果

nigerian child is receiving a smallpox vaccination

标签: nigerian,child,is,receiving,a,

officer is shown working in a plastic isolator unit

标签: officer,is,shown,working,in,a,

railway bridge leading from rhodesia to zambia is overlooking the zambezi river at victoria falls

标签: railway,bridge,leading,from,rh

nurse is shown standing near sewage pipes outside of an infectious disease hospital in johannesburg

标签: nurse,is,shown,standing,near,s

lateral irrigation system water is conveyed off the main channel to laterally directed channels

标签: lateral,irrigation,system,wate

this anopheles gambiae mosquito is obtaining a blood meal as it feeds on a human host

标签: this,anopheles,gambiae,mosquit

anopheles gambiae mosquito is a known malaria vector of the parasite known to cause this disease

标签: anopheles,gambiae,mosquito,is,

this smallpox vaccinee is shown covering the bandaged vaccination site with additional clothing

标签: this,smallpox,vaccinee,is,show

smallpox vaccinee is shown placing a dirty waterproof bandage into a sealable plastic bag

标签: smallpox,vaccinee,is,shown,pla

in this slide preparation the thick film is too thick and the thin film is too thin

标签: in,this,slide,preparation,the,

mosquito known as aedes japonicus also called ochlerotatus japonicus is a specimen of the notre dame colony

标签: mosquito,known,as,aedes,japoni

blood feeding anopheles gambiae mosquito this mosquito is one of the leading malaria vectors in the world

标签: blood,feeding,anopheles,gambia

flu is a contagious respiratory illness caused by influenza viruses it can cause mild to severe

标签: flu,is,a,contagious,respirator

member of the taxonomic family orthomyxoviridae the influenza virus is a single stranded rna organism

标签: member,of,the,taxonomic,family

toucan bird the maya biosphere reserve is central americas most biologically diverse ecosystem

标签: toucan,bird,the,maya,biosphere