شرکت در آزمون آنلاین
انگلیسی 3
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درس دوم
| آزمون شماره 6061
They use a very ……… technology which makes their products quite distinguished from those of other brands.
A: "What does the ......................... DOS ...................... ?"
B: "You can look it up in a dictionary: 'Disk Operating System'"
