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20世纪30年代,在工业化持续推进的宏观背景下,淮河流域传统食品业在机遇与挑战中缓慢前行.一方面,农产品资源十分丰富,交通条件日益改善,无论是生产规模,抑或是生产效率与生产效益·淮河流域传统食品业都呈现出新的变化.另一方面,受生产设备、资金、捐税及价格等因素的制约,传统食品业的发展又步履维艰. 相似文献
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今年是中国共产党成立90周年,也是辛亥革命爆发100周年,这两件关系中国命运的大事相隔10年,看似巧合,其实有着必然的联系。这是因为,辛亥革命要通过资本主义道路使中华民族复兴的路没有走通,所以使选择社会主义道路的中国共产党登上了复兴中华民族大业的历史舞台。近一个世纪的历史证明,中国共产党为中华民族复兴提供了根本的政治前提,抓住了难得的发展机遇,创造了良好的内外环境,继承并发扬光大了辛亥革命的未竟事业,使中华民族伟大复兴正在一步步变成现实。 相似文献
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烟瘴缺是清廷于烟瘴地区设立的特殊官缺。在烟瘴缺选人条件方面,经历了从严格限定到逐渐宽泛的过程。选人方式方面,康熙时地方督抚题补阶段为掣签,雍正以降,改为督抚、两司"会商",其实质为地方督抚对题补缺人事权形成垄断。再者,乾隆初年确立了以保障烟瘴缺官员生命健康为核心的五省籍贯制度,该制为两广部分烟瘴缺所特有,他省未见此制。烟瘴缺俸满升迁方面,由起初列于即升班内,转为部分留于本省升用,说明督抚在烟瘴缺题补中分割吏部对官员任命权的同时,也被迫承担了原本由吏部承担的责任,呈现出权力与责任趋向成正比的态势。乾隆中期以降,烟瘴缺制度未有大的变动,说明其时清廷边疆治理体系已相对成熟稳定。 相似文献
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Feng Li Li Wu Cheng Zhu Chaogui Zheng Wei Sun Xinhao Wang Shixun Shao Yao Zhou Tingting He Suyuan Li 《Journal of archaeological science》2013
Understanding how to live successfully within our environment is among the most pressing challenges facing contemporary society. This paper probes the problem based on comparative analysis and discusses the relationship between the spatial–temporal distribution of the Neolithic cultural sites and the geographic context in the Hanjiang River Basin in the south of Shaanxi Province, China. Archaeological studies have identified 175 Neolithic cultural sites in the study area, with a sequence of Laoguantai (14C age 8–7 ka BP), Yangshao (14C age 7–5 ka BP) and the late period of the Neolithic Age (14C age 5–4 ka BP). The total number of archaeological sites, the distribution area and the density all showed an early ascending and later descending trend, but the proportion of the number of archaeological sites in the study area to the corresponding value of the entire Shaanxi Province declined sharply. Spatially, these sites were concentrated on the terraces of the Hanjiang River and its main tributaries with an altitude of 400–800 m. Multiple data were integrated to clarify the critical effects of tectonic and geomorphologic conditions on the distribution of the Neolithic sites. Further comparisons revealed the correlation of Holocene climate change and environmental evolution with the Neolithic cultural succession in the study area that ameliorated conditions to generally promote the development of the primitive culture while degeneration coincided with the culture's transition or interruption. The discussion on the origin of the primitive culture and the temporal–spatial distribution corresponding to the regional culture differentiation sheds light on the complex and dynamic human–nature interaction system during the Neolithic Age, thus emphasising the wider field-based investigation and high-resolution reconstruction works of the palaeoclimate and palaeoenvironment in the future. 相似文献
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Dong-Xun Yuan Yi-Chun Zhang Yu-Jie Zhang Tong-Xing Zhu Shu-Zhong Shen 《Alcheringa: An Australasian Journal of Paleontology》2013,37(4):546-556
Yuan, D.X., Zhang, Y.C., Zhang, Y.J., Zhu, T.X. & Shen, S.Z., 2014. First records of Wuchiapingian (Late Permian) conodonts in the Xainza area, Lhasa Block, Tibet, and their palaeobiogeographic implications. Alcheringa 38, 546–556. ISSN 0311-5518.Conodonts are among the best fossil groups to provide high-resolution biostratigraphic correlation and resolve the palaeobiogeographic evolution of the Permian. However, they have been rarely reported from the Lhasa Block in Tibet. Here we report the first discovery of Wuchiapingian (early Lopingian) conodonts from the Xiala Formation in the Lhasa Block, Tibet. This conodont fauna includes two genera and three species (Clarkina liangshanensis, C. orientalis, Iranognathus sp.). The conodont fauna indicates that the Xiala Formation previously assigned to the Guadalupian actually ranges from late Kungurian to late Wuchiapingian. The existence of the late Wuchiapingian conodont species Clarkina orientalis and C. liangshanensis in the Lhasa Block provides additional data to support the viewpoint that this block probably had been in a warm-water regime during the Wuchiapingian (Lopingian).Dong-Xun Yuan [yuanzi55@163. com], School of Earth Sciences and Engineering, Nanjing University, 22 Hankou Road, Nanjing, 210093, PR China and State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing, 210008, PR China; Yi-Chun Zhang [yczhang@nigpas. ac. cn] and Shu-Zhong Shen [szshen@nigpas. ac. cn] (corresponding author), State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing, 210008, PR China; Yu-Jie Zhang [zebiac@163. com] and Tong-Xing Zhu [ztongxing88@yahoo. com. cn], Chengdu Center, China Geological Survey, 2 Renming Road North, Chengdu, 610081, PR China. Received 9.1.2014; revised 1.4.2014; accepted 28.4.2014. 相似文献
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