While athletes are competing for gold medals on the field of play, officials are carrying out tests inside Shenzhen's Universiade Village.

At the Anti-doping Outreach Program Station, athletes file in to take a ten-question quiz about international anti-doping regulations. If they get at least eight answers right, they will be awarded with these gifts.

The quiz was developed by the World Anti-Doping Agency and has dozens of questions in more than 30 languages in its database. The questions will come out randomly for each quiz.

In the station, athletes can also find brochures full of anti-doping facts and answers to the quiz questions.

This is the first time the Anti-doping Outreach Program has been implemented for an international sports competition hosted in China. More than 100 athletes and relevant personnel have taken this quiz in the Universiade Village each day since Aug 10.

Video: Huang Lan

Producer: Flora Yue