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A good way to assess the quality of service

Photo electricity charges. Near a specialist in public service are 2 buttons. To assess the quality of service personnel. The public need to click the "good" or "bad" (in Ukrainian).
See below.











via source
quality of service click score Ukraine
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...
Regular hero
...
Quality of goods
...
Sense: smart alarm clock, the quality of sleep tracker and air quality analyzer
...
9 qualities of HAPPY PEOPLE IN A RELATIONSHIP
...
How to choose olive oil
...
Cheap plane tickets on the website "airlines.aero"
...
Quality army dry rations:
...
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