多样性

We show that over timescales ranging from 500～10000 years, allele frequency data for polymorphic allozymes reveal a consistent loss of genetic diversity along invasion routes, confirming the role of glacial refugia as centres of genetic diversity over these timescales, and that populations in the invaded range are more subdivided genetically than those in the native range of each species.

从500～10 000年的时间尺度上，多态的等位酶位点上等位基因频率的数据表明：1）遗传多样性沿入侵路线呈不断下降的趋势，支持了冰河期避难所作为遗传多样性中心的作用；2）入侵地区的种群与该物种原产地的种群相比，遗传上的分化更为强烈。

This passage has studied on the biodiversity and its ecosystem service value in the Wuling Mountain nature reserve: 1 Through surveyed and analyzed the overall multiplicity of 7 kind of main forests community types by using the sample plot survey to Wuling Mountain.

本研究采用多种方法对雾灵山森林生物多样性及生态服务功能价值进行了仿真研究： 1。利用样地调查法对雾灵山7种主要森林群落类型的整体多样性进行了调查分析。

The results showed that the species number of periphyton was the greatest in summer and the density of dominant species was the highest in summer and autumn, and the water quality was generally consistent with the tendency of the changes both in the indices of diversity and evenness. There were significant negative correlations between the contents of N and P in water, and the indices of diversity, evenness, algae density, total biomass, while CODcr and BOD5 did not show any significant relationship with these four biological indices.

研究结果显示，着生生物种类数以夏季最多，优势种密度以夏、秋季最大，多样性指数、均匀度指数的变化趋势与水质指标的监测结果基本一致；经相关性分析表明：水体中氮、磷含量分别与生物多样性指数、均匀度指数、藻类密度和总生物量四项指标呈显著负相关， CODcr、BOD5与四项生物指标均无相关性。

The lowest Fst value shows that less genetic variations exist among population of F.gracilipes whic is close to panmictic There is almost no genetic differentiation between populations of F.statice . Genetic similarity is 55.3%~ 65.2% between species of F.tataricum and its related species, which is close to the average level among species in seed plants.

这些种的近交繁育系数 F 值-0.54～-0.80，为随机交配的居群，杂合体过多；营养繁殖为主的金荞麦的FST值最高，相对较多的遗传多样性存在于居群间，长柄野荞麦相对较少的遗传多样性存在于居群间，更接近于自由交配。

Our results indicated that tansgene should not increase the risk of pollen-mediated escape and damage the genetic divergy, based on transgenic rice. A new fast method of risk assessement for genetic divergy was proposed. Our studies also indicated that a wide coverage of wind-dispersed pollen of Bt-transgenic rice has potential risk to sericulture in the mulberry-rice mixed cropping area of southern China.

本研究结果初步表明，转基因并不会引起水稻导入基因通过花粉漂流杂交逃逸的风险，对水稻遗传多样性不会造成影响；提出了一种快速评估转基因对遗传多样性影响程度的新方法；对转基因花粉可能对我国南方桑稻混种区养蚕业的影响研究表明，抗虫等转基因水稻在这些地区商业化生产可能会对养蚕业造成危害，需要进一步开展评估研究。

Which play a major role in the pathological changes of restenosis after angioplasty But AT2 receptor is only expressed abundantly in the fetal vasculature with rapid decline after birth and the level of re-expression in the adult vasculature after injury is very low So there are little understanding about the actions of AT2 receptor in vascular diseases, especially in the restenosis after injury.

在寻致或加重VSMC增殖和迁移诸多因素中，血管紧张素Ⅱ所介导的生物学作用是其中重要的因素之一。AngⅡ具有多种生物学作用，其作用的多样性是通过其受体的多样性介导的，目前已确定的AngⅡ受体至少有两型，即AngⅡ 1型受体(AT1R)和AngⅡ 2型受体(AT2R)。

While others have no marked difference between each other, it is means that there's no rule in them, and it can not make soil organism fall off, if you keep a Mao bamboo forest for several years just with weed-cutting measure.

综合实验结果得知，在该调查区内毛竹的栽培历史与土壤微生物功能多样性之间没有规律存在，也就是说，采取人工方法在冬季除去林下杂灌的毛竹林经营措施，长期种植毛竹不会引起土壤微生物功能多样性的下降。

The steppe landscape is dominant but not apparent in its patch and area, and the percentage of the original vegetation of Stipa bungeana steppe is very low in the study area, which is apparently characterized by human disturbance. The diversity and evenness of patches in the study area are higher than those of the steppe landscape area, and the fragmentation and the isolation of the steppe are the highest. The landscape shapes of artificial arbor woods and cultivated lands are the simplest, and the landscape shapes of classical steppe and artificial shrub are in an instable stage.

结果表明：(1)草原景观在其斑块数和面积上虽然仍居首要地位，但其优势并不十分明显，而且该区原生植被本氏针茅草原只占很小的比重，呈现出非常明显的人类干扰特征；(2)研究区斑块的多样性程度和均匀度较高，而面积的多样性程度和均匀度较低，同时，典型草原的景观破碎度最大，景观分离度也最大；(3)景观形态上，人工乔木林和耕地的景观形态最为简单，典型草原和人工灌丛这2种景观类型还处于很不稳定的阶段。

In the second place, the variety of musician resources brings about the multivariation of Wang Meng's spiritual structure. Various musical and cultural resources, including Russian classical music, revolutionary songs of the Soviet Union, minority music of the Northwest of China, the film music of Hollywood and modernist music of the West world, help Wang in his reflection on and transcendence of the'revolutionary'politics and culture.

第二，音乐资源的多样性带来王蒙精神结构的多元性，俄罗斯古典音乐、前苏联的革命歌曲、中国西北少数民族音乐、甚至好莱坞的电影音乐、西方现代主义音乐都可能是王蒙获取精神与文化素养的主要来源，正是这种音乐和文化资源的多样性使王蒙对&革命&政治与&革命&文化有所反思与超越。

Neighbourhood composition and neighbourhood interaction would be affected by both biotic and abiotic factors, thus the plants appear as different spatial pattern, various neighbourhood effects, and unlike neighbourhood compositional and structural diversity.

各种生物非生物的因素影响了植物的邻体组成和邻体相互作用，表现为不同的空间格局、邻体效应、邻体组成多样性、邻体结构多样性。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！