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China signed dozens of cooperation agreements in the fields of trade, energy, science and technology, agriculture and culture with the four countries.

• Xi expands cooperation on visits

• Xi's maiden foreign tour historic, fruitful

• Xi's foreign tour fruitful: experts

• BRICS summit promotes unity among major emerging economies: Chinese FM

• Xi's Russia visit enhances mutual trust, expands cooperation: Chinese FM

• Tanzania keen to forge stronger relations with China: ambassador

• Tanzania wants to power ahead

• Veteran Chinese diplomat praises China-Africa cooperation

• Chinese president to embark on four-nation tour

• News Analysis: Chinese investors aid African society

• China will be Africa's all-weather friend and partner: Chinese president

• Chinese president pledges to enhance cooperation with Republic of Congo, Africa

• Chinese president arrives in Brazzaville for state visit

• Republic of Congo 'cherishes friendship with China'