Shu said the firm's ultra high-voltage project in Brazil has played an important role in Brazil's power connections and has helped 22 million local people access electricity.
Officers have seized a white Ford Transit van which had been stolen from Ballance Street and was left at the scene.
"That is to say, it's difficult to verify whether there is a labor relationship between the free workers and the app platforms. This is the focus of many lawsuits as well as the challenge in the hearings," he said.
President Xi Jinping and other Chinese leaders attended the opening meeting at the Great Hall of the People.
Previously natural enzymes were used, however, they were less sensitive and not as stable, so enzyme mimics or artificial enzymes were developed, but the efficiency of enzyme mimics was often insufficient.