【明報專訊】BEIJING is using the run-up to the 6th Plenum of the 18th Central Committee of the Communist Party of China to launch its autumn diplomatic offensives. President Xi Jinping paid state visits to Cambodia and Bangladesh and attended the 8th summit of BRICS leaders in Goa, India. Before that, Premier Li Keqiang had made an inspection of Macao, where he attended a conference of the Forum for Economic and Trade Cooperation between China and the Portuguese-speaking Countries (PSCs). Xi and Li are to meet in Beijing Philippine President Rodrigo Duterte, whose trip has been upgraded to a state visit.