"is"的搜索结果

ham and cheese sandwich is made with attention to quantity and caloric intake

标签: ham,and,cheese,sandwich,is,mad

culex quinquefasciatus mosquito is proven to be a vector associated with transmission of the west nile virus

标签: culex,quinquefasciatus,mosquit

this is an example of contour check irrigation

标签: this,is,an,example,of,contour,

influenza the flu is a contagious respiratory illness caused by influenza viruses

标签: influenza,the,flu,is,a,contagi

3d graphical representation of ultrastructure and is not specific to a seasonal avian or 2009 h1n1 virus

标签: 3d,graphical,representation,of

this woman is being vaccinated for smallpox during a 1968 african vaccination campaign

标签: this,woman,is,being,vaccinated

this photograph is showing a clinic outside the united states where cdc field clinicians treated

标签: this,photograph,is,showing,a,c

this individual is removing a bird from a net

标签: this,individual,is,removing,a,

this gasoline powered back hoe is beginning to excavate a non draining swale in an area

标签: this,gasoline,powered,back,hoe

this black bag is used to hold and quiet captured birds to be tested during arbovirus studies

标签: this,black,bag,is,used,to,hold

stearman bi plane is spraying an insecticide during malaria control operations in savannah ga

标签: stearman,bi,plane,is,spraying,

special pathogens branch scientist is performing an elisa test on suspected hantavirus samples

标签: special,pathogens,branch,scien

peruvian street vendor is selling a corn based drink he made at home

标签: peruvian,street,vendor,is,sell

nomadic tuareg girl is receiving a smallpox vaccination in mali west africa

标签: nomadic,tuareg,girl,is,receivi

nigerien child is receiving a smallpox vaccination

标签: nigerien,child,is,receiving,a,