Many state-of-the-art robots including humanoids, robot dogs and bee-shaped flying machines were showcased at an international exhibition that opened Friday in Beijing, as China promotes the development of such items amid an intensifying technology rivalry with the United States.More than 200 companies from China and elsewhere displayed some 1,500 products at the five-day World Robot Conference, of which about 100 were newly developed items.The robots on display included a humanoid developed by Lumos Robotics, a startup in southern China's Shenzhen, which can stand up in one second after ly…READ FULL ARTICLE