Foreign languages, business studies, psychology and interviews. According to China Education Network, the Ministry of Commerce seconded foreign embassies and consulates to participate in foreign language written test, foreign language oral test, business research, psychological test and interview. The Ministry of Commerce will organize inspection for those who pass the examination, and the inspection personnel will be included in the reserve bank of secretary-level cadres of foreign commercial institutions of the Ministry of Commerce and participate in training courses for overseas personnel in batches. Those who pass the training will be dispatched in time according to the situation of foreign posts, and the dispatched personnel will be seconded by the Ministry of Commerce.