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2月9日,我国正在研制的长征五号火箭发动机试车成功。该火箭最大运载能力为25吨,是我国现有火箭的2.7倍。未来,它将主要用于探月工程、空间站等大重量航天器的发射。一号文件2015年2月1日,《关于加大改革创新力度加快农业现代化建设的若干意见》发布,这是自2004年以来,中央一号文件连续第12次锁定“三农”。近年来,我国农业连年丰收,但“地越种越硬、越种越薄,肥越施越多、成本越来越高”的问题影响了我国农业的可持续发展。一号
February 9, China is under development Long March rocket engine test success. The rocket has a maximum carrying capacity of 25 tons, 2.7 times that of the existing rocket in our country. In the future, it will be mainly used for launch of large-weight spacecraft such as lunar exploration project and space station. No.1 Document On February 1, 2015, “Several Opinions on Enhancing Reform and Innovation and Accelerating Agricultural Modernization” was released. This is the first time since 2004 that the No.1 document of the Central Government has locked “three rural issues”. In recent years, the agriculture in our country has been bumper year after year, but the problem of “more and more hard, more thin and thinner, more and more fertilizer and more costs” has affected the sustainable development of agriculture in our country. One