这项发明测验是提高您对发明知识的最佳途径
This Inventions app has been developed for testing your skills of Inventions . This app has more than 10,000 multiple choice questions and answers. This Inventions quiz app suits for all lower, intermediate and higher levels. The questions at all levels will be displayed randomly. The user can improve Inventions knowledge and user can score well in high school, college and competitive level examinations. This is a free version and you can be used in both offline and online.