In January of this year, a species of alien species called Spodoptera frugiperda invaded our country. Afterwards, insects appeared in various places, and the spread of spread was markedly accelerated. From the hazard characteristics of this pest, we can see that the genus Spodoptera can
This article is a research report by Wang Qing, director of the Market Circulation Research Office of the Development Research Center of the State Council. The original title is "Some Thoughts on the Development of New Energy Vehicles in China". The length is longer. We will distribute it
Xinhua News Agency Shijiazhuang March 26 (Reporter Wang Min) The reporter learned from Great Wall Motor Company that the first transmission independently developed by Great Wall Motor was successfully trial-produced. This five-speed transmission is specially developed for the 1.3-l