"an"的搜索结果

an agricultural extension program in yemen has already produced big results for sheep farmers

标签: an,agricultural,extension,prog 浏览: 17

after retrieving water from an irrigation canal a resident boils water in a large container

标签: after,retrieving,water,from,an 浏览: 18

an engineer makes a site visit to the baghdad south power plant

标签: an,engineer,makes,a,site,visit 浏览: 14

an ochlerotatus triseriatus mosquito feeding on a human hand

标签: an,ochlerotatus,triseriatus,mo 浏览: 13

etacarcinus magister formerly cancer magister were being kept fresh and cold inside an aquarium

标签: etacarcinus,magister,formerly, 浏览: 19

out of school youth in haiti benefit from an intensive educational and vocational training

标签: out,of,school,youth,in,haiti,b 浏览: 16

nurse takes dried blood spot samples from an infant to test in a maternal and child health

标签: nurse,takes,dried,blood,spot,s 浏览: 16

health worker in sindh uses an illustrated calendar to explain best practices in maternal child health

标签: health,worker,in,sindh,uses,an 浏览: 16

distal tip of an empty syringe revealing the metallic needle with its blue plastic proximal

标签: distal,tip,of,an,empty,syringe 浏览: 18

corn has been an important nutritional resource for thousands of years

标签: corn,has,been,an,important,nut 浏览: 18

cellphone and an automobile electronic key

标签: cellphone,and,an,automobile,el 浏览: 16

women who runs an accessory business

标签: women,who,runs,an,accessory,bu 浏览: 11

home maintenance is an ongoing process for any home owner

标签: home,maintenance,is,an,ongoing 浏览: 15

father repairing an interior door frame while his young son was playing with a toy car in an adjacent room

标签: father,repairing,an,interior,d 浏览: 17

carrying out an inspection of emergency relief supplies

标签: carrying,out,an,inspection,of, 浏览: 15