【摘 要】
：
贵州是古生物的王国,有许多关于古生物的奥秘等待人们去探索,黔羽枝悬案就是其中之一。1972年,贵州地质局区域地质调查大队(108队)在进行1/20万湄潭幅的区域地质填图时,在凤
论文部分内容阅读
贵州是古生物的王国,有许多关于古生物的奥秘等待人们去探索,黔羽枝悬案就是其中之一。1972年,贵州地质局区域地质调查大队(108队)在进行1/20万湄潭幅的区域地质填图时,在凤冈县硐卡拉剖面志留纪地层中发现了一种形态特殊、呈羽状分枝的未知古生物化石,怀疑其为树形笔石,并将化
Guizhou is the kingdom of paleontology, there are many mysteries about the paleontology waiting for people to explore, Qian Yu hanging overhang is one of them. In 1972, the Guizhou Geological Bureau Regional Geological Survey Team (108 teams) in the area of 1/5000000 Meitan regional geological mapping, Fenggang Fengcala section Silurian strata found a special form, was Feather-shaped branch of the unknown paleontological fossils, suspected of tree-shaped pen-stone, and will be
其他文献
本文以高职院校学前教育专业为研究对象,围绕当前学前教育专业地理教学的现状展开分析。首先,对当前高职院校学前教育专业地理教学中存在的问题进行了深入的研究。其次,详细
高职旅游教育的人才培养,即是着力培养学生深厚的人文底蕴、扎实的专业知识、宽广的国际视野及强烈的创新意识。在培养法语专业旅游人才的同时,应注意到“文化”所起到的重要
AIM: To determine the inhibitory effect of the vector- generated small interfering RNAs (siRNAs) on the expression of the Bcl-XL gene in established human esoph
AIM: To explore the effect of gastrin 17 (G17) on β-catenin/T cell factor-4 (Tcf-4) signaling in colonic cancer cell line Colo320WT. METHODS: The pCR3.1/GR pla
The effects of UVA photoirradiated Ce(Ⅳ) doped TiO2 nanoparticle (CDTP) on rat colon carcinoma cell line (C26) growth, cell cycle distribution, and morphology
本文引进了新变量ESK,采用了强制选择提取任务和二语水平测试,对句法错析假说和波动假说进行验证。结果表明否定了句法错析假说和波动假说。
In this paper, a new variable
The Luoping Biota consists of abundant and well-preserved marine fishes, reptiles, invertebrates, and plants. It occurs in the Middle Triassic Guanling Formatio
The data on the hillslope and channelized debris flows in the Shitou area of central Taiwan occurred during Typhoons Toraji and Nali in 2001 were applied in thi
在近期召开的美国泌尿外科学会年会(AUA)上,美国纽约Rochester大学泌尿外科的Edward Messing博士报道说,对轻微血尿症患者进行家庭膀胱癌筛查可显著改善膀胱癌患者的存活率;
进入新世纪,全球经济一体化趋势越来越明显,中国对外开放的力度也越来越大,中国需要大量能参与国际经济社会交流、具备国际竞争力的人才,以改变我国人才建设滞后于国家发展的