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The result of RAPD analysis was similar to the one by using morphological characters, and agreed with the idea that T. emma and T. occipitalis are two independent species. Orthoptera ; Gryllidae ; Teleogryllus ; RAPD ; phylogenetic relationship

RAPD技术是Williams和Welsh等分别于1990年报道的一项DNA多态性检测技术，由于其具有简便、快捷等特点，被广泛应用于种属分类鉴定、基因图谱构建、以及物种亲缘关系和系统进

Through the use of SPSS11.0 statistical package,lumbar discogenic pain on high incidence of age,good site,the morphological changes of intervertebral disc, and correlation analysis between the classification of vertebral endplate osteochondritis and the consistent pain induced by discography were studied.

使用SPSS11.0统计软件包对椎间盘源性腰痛的高发年龄、好发部位、椎间盘形态学改变、终板骨软骨炎的类型与椎间盘造影一致性诱发痛关系进行统计学分析。

At the same time,the morphological variations of the ampulla and ithmus of the oviducts were observed and measured by light microscopy. Results The serum levels of estradiol were E＞PE＞ME＞DE＞OVX.The differences between the two groups were significant.The height of the oviductal epithelia was E＞PE＞DE＞ME.After ovariotomy,the epithelia of the oviduct were atrophied and regressive.

结果 大鼠血清雌二醇浓度依次为：动情期组＞动情前期组＞动情后期组＞动情间期组＞去卵巢组，各组间差异均有显著性；输卵管粘膜上皮高度在动情周期中变化为：动情期组＞动情前期组＞动情间期组＞动情后期组；去卵巢后，输卵管粘膜上皮萎缩。

Environmental changes in the Swan Oxbow of the Yangtze River in China in the last 3 decades have been documented by morphological diversity, ecological characteristics and assemblages of testate amoebae, combined with pigment data.

通过对天鹅洲长江故道近代沉积物中有壳变形虫的形态、生态特征和多样性组合变化的研究，重建了该地区30a以来有壳变形虫的群落演替过程。

It is likely that these cells have also the pacemaking function.So this therefore become the morphological bases of atrial fibrillation.

这些细胞可能具有起搏的潜能，在某些异常情况下，而成为心房颤动的形态学基础。

The generic distributions in both modern and fossil times were outlined, and their distribution center, place and time of origin and the way of dispersal were discussed. An attempt was made to discuss early differentiation, geographical radiation and morphological evolution of the family on the background of paleogeography and paleoclimatology, tracing back as far as the Late Cretaceous and Early Tertiary.

作者试图回到遥远的晚白垩纪和旱第三纪，从描绘桦木科植物起源和早期分化的古地理和古气候背景入手，分析了在这种背景下桦木科植物所发生的空间辐射以及植物体本身所产生的形态进化，以求得对桦木科植物起源、散布和分化作出比较合理的解释。

The intergeneric and infrageneric relationships of Gaultherieae based on morphological study have been debated for a long time. In this dissertation, palynology and seed morphology of Gaultherieae were studied for employing more critical characters for the reclassification.

本研究基于孢粉学和种子形态学的实验手段，研究了白珠树族相关形态特征的演化过程和系统学意义，为进一步对该族的分类学修订提供重要形态性状。

The research advances in genetic relationships of peach germplasm, including the morphologic, cytology, palynology, biochemistry and DNA molecular markers, were reviewed in this paper. The actuality, prospect and urgent problems of peach germplasm resources were also discussed. To further study the genetic relationships of wildness, sib wildness and cultivar groups of peach, we may resort on genetic markers and DNA sequence analysis in addition to morphological characters.

本文从形态学、细胞学、孢粉学、生物化学及DNA分子标记等几个方面综述了桃种质资源亲缘关系的研究进展，探讨了桃种质资源亲缘关系的研究现状、前景及尚需解决的问题，并就进一步开展桃种质资源亲缘关系的研究进行了分析，提出桃种质野生种、近缘野生种厦不同栽培品种群间的分子系统学关系是今后研究的重点。

The dry material productive ability and morphological difference of different panicle type was studied .

以几个有代表性的不同穗类型品种为主，研究不同穗类型间的形态差异和干物质生产能力。

But recent survey reported that Panicum maximum, a perennial grass in the family of Poaceae and listed as one of the twenty most noxious invasive plants in Taiwan has replaced the role of M sinensis in those areas. As a result of recurrent burning, A. confuse forest has been gradually replaced by the grassland of P. maximum. In this study, I compared morphological, photosynthetic, growth and life history characters of field growing P.

早期的研究指出：在大肚山与铁砧山区的本地植物芒草为当地相思树林反覆火烧后的最优势种；但近年来同一地区的研究显示：大黍已取代芒草的角色，而且发现大黍在火烧后植群覆盖度显著的增加，但芒草却没有相同的现象；反覆火烧使得大肚山地区的相思树林逐渐转变成以大黍为主的草生地。

He tendered his resignation to the Prime Minister.

他向首相递了辞呈。不适合

International economy and trade,Nanking 210044

国际经济与贸易，南京 210044