The result at the Maracana stadium lifted Flamengo to the top of their group with 12 points from five matches, three points ahead of second-placed Independiente.
Behind the top three, Racing Point's Sergio Perez finished a strong fourth ahead of Daniel Ricciardo's Renault, and Charles Leclerc had a good run to sixth in his Ferrari ahead of Ricciardo's teammate Esteban Ocon.
"More than 10,000 schools in China are using our products," said Liang. "And we are expecting more."
Following reigning world champion Liu Shiwen's withdrawal due to an injury, her compatriot and current world No. 1 Chen Meng enters the action and expects a tough challenge from the closest rival Mima Ito from Japan.
Elsewhere on Sunday, Goias drew 2-2 at Ceara and Atletico Goianiense were held to a 1-1 home draw by Botafogo. Enditem
To leave space for postponed matches, the Champions League's group phase's timeframe has been extended until January 28.
They will always be a threat from set pieces as Kike Garcia showed in their goal, but unless things improve fast it could be a difficult campaign in Ipurua. Enditem
Elsewhere, Freiburg and Wolfsburg shared the spoils following a 1-1 stalemate as Josip Brekalo cancelled out Nils Petersen's opener. Enditem
Flamengo had asked the Brazilian Football Confederation (CBF) to postpone the clash after reporting at least 16 positive coronavirus cases in their first-team squad, with only nine outfield players available.
Suzhou, in east China's Jiangsu province, will host Final A, while Final B will be staged in Dalian, in northeast China's Liaoning province.
Dortmund continued on the front foot and controlled possession but Augsburg's well-positioned defense defused most attacks in the midfield.