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проверять наличие (test for something | test something for something: to examine something to see if a particular substance, etc. is present ▪ testing for oil ▪ The software has been tested for viruses. OALD Alexander Demidov); проверить наличие (to try to find out about something by testing. We are testing for weak places in your roof. That's the noise you hear up there. They are testing for some sort of infection. McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 Alexander Demidov); испытывать на |
