1937年国共实现第二次合作前,曾进行了一段颇为曲折的谈判。谈判过程中,双方开展了一系列的公开活动,以向世人证实国共实施第二次合作的信心和决心。这些活动中影响较大的是国民党派考察团赴延安等中共控制地区考察一事。1937年4月底,周恩来再赴西安,继续与国民党西安行营主任? Before the second communique was reached in 1937, the Kuomintang and Communist Party held a rather tortuous course of negotiation. During the negotiation, the two sides conducted a series of public activities to prove to the world their confidence and determination in implementing the second cooperation. The most influential of these activities were the visit of the Kuomintang delegation to Yan’an and other areas controlled by the CPC. At the end of April 1937, Zhou Enlai went to Xi’an again and continued to work with the Kuomintang headquarters in Xi’an.