一中共一大召开后,中国共产党的创始人之一李大钊负责中共北京区委和北方区委的工作,先后担任区委委员、委员长和书记。在中共第二、第三、第四次全国代表大会上,他均当选为中央执行委员。中共三大之后,李大钊奉派执行中国共产党的统一战线政策,他多次坦诚会晤孙中山,并由孙中山 After the first CCP convened, Li Dazhao, one of the founders of the Chinese Communist Party, took charge of the work of the CPC Beijing Committee and the Northern District Party Committee, and successively served as member of the Party Committee, chairman and secretary. At the second, third and fourth national congresses, he was elected as the Central Executive Committee. After the Third Plenary Session of the CPC Central Committee, Li Dazhao was sent to carry out the policy of the united front of the Chinese Communist Party. He met Sun Yat-sen on many occasions candidly and was led by Sun Yat-