分类上的

Occurrence records from 1864 locations and 34 environmental variables from Daymet datasets were gathered, four modeling methods including Logistic Regression, Classification and Regression Trees, Genetic Algorithm for Rule-Set Prediction and maximum entropy method were used to generate potential geographic distributions for Dreissena polymorpha in the continental USA. Then three statistical criteria including area under the Receiver Operating Characteristic curve, correlation and Kappa were calculated to evaluate the performance of the models, followed by analyses of major variable contributions.

论文以1864个美国外来入侵物种斑马纹贻贝定点发生数据和开放式基础地理信息数据库Daymet的34个环境变量为主要信息源，采用逻辑斯蒂回归、分类与回归树模型、基于规则的遗传算法、最大熵法4种途径，建立美国大陆部分潜在生境预测模型，从接受者运行特征曲线下面积、Pearson相关系数、Kappa值3个方面来检验模型预测精度，在此基础上分析斑马纹贻贝的空间分布规律及其环境影响因素。

Although previous studies have revealed that functional dyspepsia is associated with psychopathological factors and personality, the association is heterogeneous among FD patients, reflecting their diverse underlying pathophysiological mechanisms.

有鉴於高度的异质性，目前的诊疗准则(罗马III准则，Rome III criteria)提议以更专一的疾病诊断来取代功能性消化不良：罗马III准则将功能性消化不良作进一步次分类，因而定义两个症候群：功能性上腹痛症候群和餐后不适症候群。

It is in the Contract Law of PRC which was promulgated in the end of last century that the legal system of incompletely-effected contract which consists of the legal system of the indefinitely-effected contract and the legal system of the rescissible contract the has been established really and firstly in China.

3万篇免费论文，近200个详细分类，为你的论文写作排忧解难。点击进入摘要：由效力未定合同制度与可变更可撤销合同制度共同组成的非完全效力合同制度在我国于上世纪末颁布的新《合同法》中首次得到了确立。

The radiological features of COP were classified into four types according to pulmonary consolidation, ground grass opacity, nodule, and liner or reticular lesion. The distribution of lesions were classified according to the single or double lung fields, upper or lower lung field, or the surrounding bronchovascular bundle or subpleural area, The radiological types and distributions of the lesions were analyzed.

将COP的CT表现分为实变、磨玻璃样变、肺结节、线样或网格样改变等4型；病变的分布按单肺或双肺，上肺或下肺，胸膜下或沿支气管束走行等分类，对病变的类型及分布特点进行分析。

The "Tetrix" Latreille, 1802, is a big genus in Tetrigidae, the species are distributed in Asia, Europe, Africa, Astrialia and North America, and the species are distributed in China, Heilongjiang to Hainandao, Taiwan to Xinjiang……, up to now, there are more than known 160 species, among them, 75 species are distributed in China, among them, 19 new species are distributed in the Insect Specimens Room of Shaanxi Normal University.

蚱属Tetrix为Latreille 1802年建立，是蚱科Tetrigidae中最大的一个属，广泛分布於亚洲、欧洲、非洲、澳洲和北美洲，至今世界上已知种类约160余种。在中国蚱属北起黑龙江，南到海南岛，东起台湾，西到新疆都有分布。以检索表形式将中国蚱属进行分类研究，共记述已知的75种，其中有新种19种。新种的模式标本保存於陕西师范大学动物研究所昆虫标本室。

Three primer pairs located in psbA~trnK, psbB~psbH and trnR-ACG~trnN-GUU regions were applied in phylogenetic analysis according to Maximum parsimony and Neighbor-joining methods. The consistent results between the phylogenetic analysis and taxonomy indicated the application potential of the three primer pairs in phylogenetic analysis and species identification. However, due to no sequence variation observed in amplified regions between two vegetable soybean varieties (KS5 and KS8), two cowpea subspecies (Vigna unguiculata ssp. cylindrica and Vigna unguiculata ssp. sesquipedalis), and among three rice varieties (TNG67, TK9, and TCS10), the three primer pairs are not effective in identifying variation within species.

选择其中三组引子对(基因体位置为psbA~trnK、psbB~psbH及trnR-ACG~trnN-GUU)增幅片段之序列进行亲缘分析，以最大简约法及邻接法之分群结果皆与目前植物分类相符，故三组引子对在物种间亲缘关系分析及物种鉴定上都有不错的效果，位於psbA~trnK及psbB~psbH之引子对效果尤佳，但是三组引子对在物种内变异的辨识效果不甚理想，在两个毛豆品种间(高雄5号与高雄8号)、两个豇豆亚种间及三个水稻品种间(台农67号、台稉9号与台中秈10号)的增幅片段没有明显差异存在。

We groped for information extracting technique of inland lake wetland and inshore wetland as well as dynamic monitoring technique of inshore wetland.

本论文摈弃了传统的分类方法，在对研究区充分分析的基础上，根据研究区的实际情况，分别采用了如下方法：(1)南四湖区湿地信息提取技术。

Recorded together, but when the transaction is recorded in the ledger, the debits and credits are en

交易的借方和贷方同时出现，但在分类账记录中，一笔交易的借方和贷方出现在不同的账户上。

It also explicates the content of agricultural subsidy policy system and analyses the economic influence of it in an open economy.

在此基础上，按照WTO的分类标准，阐述了农业补贴政策体系的具体内容，并对开放条件下的农业补贴效应进行了分析。

After a deep study,it is noted that there are inadequacies in the previous researches in the area.

在文献综述的基础上，阐释了中国篮球文化的概念、分类结构及其特征方面的研究现状。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。