求翻译：对于抢答器其广泛用于电视台、商业机构、企事业工会组织、俱乐部及学校等单位组织举办各种知识、技术竞赛及文娱活动时作抢答之用，为竞赛增添了刺激性、娱乐性，在一定程度上丰富了人们的业余生活，并且给人的视觉效果非常好，是各单位开展素质教育、精神文明、娱乐活动的必备产品。是什么意思？

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