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Here, we took demonstration study of the ecological impacts of disconnection from the river on fish recources in Zhangdu Lake. Our results showed that:(1) Fishery mode changed and the rate of wild fishery production changed from 95% in 1949 to less than 5% in 2002.(2) Fish species have decreased from 80 in 1950s to 52 at present, and the rate of migrant and potamic species decreased from 50% in 1950s to 30% at present.(3) Comparing with the linking lake, Zhangdu Lake had higher fishing production, larger individual size, fewer species number and lower diversity index of "mihunzheng" fishery, a universal fishing tool in Yangtze.

我们以涨渡湖为例开展江湖阻隔后对单个湖泊鱼类资源所产生的生态影响进行研究，结果表明：江湖阻隔导致湖泊生产经营方式改变，使得野生渔业产量的比例由1949年的95%，降低到2002年的不足5%；江湖阻隔后湖泊鱼类种类由50年代约80种下降到现在的52种，其中，洄游性和流水型鱼类比重由50%下降至不足30%；迷魂阵渔获物在单位产量、个体大小上极显著(p 0.01)地高于通江湖泊，但在物种数和多样性指数上则要低得多(p 0.01)。

The Wealth of Nations changed our understanding of the economic world just as Newton's Principia changed our understanding of the physical world and Darwin's Origin of Species.

国富论改变了我们对经济世界的理解，就像牛顿定律改变了我们对物理时间的理解，达尔文改变了我们对生活进化的理解。

The Wealth of Nations changed our understanding of the economic world just as Newton's Principia changed our understanding of the physical world and Darwin's Origin of Species.

国富论改变了我们对经济世界的理解，就像牛顿定律改变了我们对物理世界的理解，达尔文改变了我们对生物进化的理解。

Var. pyramidalis is not positively correlated with ion concentration in growth environment, the capacity of selective absorption and transport of ions in Populus alba L. var. pyramidali under salt stress in drainage canal is higher than Populus alba L. var. pyramidal is of normal growth in irrigation canal. Under salt stress, the concentration of K(superscript +)、Na(superscript +) of roots and leave of Populus alba L. var. pyramidalis have changed, the concentration of K(superscript +) of roots and leave dropt the concentration of Na(superscript +) of roots markedly increased, the concentration of Ca(superscript 2+), Mg(superscript 2+) have slightly changed, the concentration of Ca(superscript 2+) of roots dropted, the concentration of Mg(superscript 2+) increased, the concentration of Ca(superscript 2+), Mg(superscript 2+) of leave increased.

主要结论为：新疆杨各器官的离子含量与生长环境中的离子浓度不存在正相关趋势；排渠盐胁迫下生长的新疆杨对离子选择吸收和运输的能力高于灌渠正常生长的新疆杨；盐胁迫下，新疆杨根和叶中K、Na的浓度发生了明显的变化，K浓度在根和叶中呈下降趋势，Na浓度在根中明显增加，根和叶中Ca(上标 2+)、Mg(上标 2+)浓度的变化趋势略缓，根中Ca(上标 2+)浓度下降，Mg(上标 2+)浓度增加，叶中Ca(上标 2+)、Mg(上标 2+)浓度有所上升。

In order to meet the challenge of knowledge economy, old education conception should be changed, meanwhile, teachers should improve themselves and become "double - teacher- type" teacher. New way of running schools, education system , teaching device and content should be used too. The way of running schools is open . The education system should be changed . The advanced vocational education must train qualities of qualitied and innova...

高职教育必须提高思想认识，构建合格的&双师型&教师队伍，改革教学方法手段和内容，实行开放式办学，转变教育体制，实现教育观念、师资队伍建设、教育体制、教学方法手段和内容以及办学方式的创新，以迎接知识经济的挑战，培养合格的创新型高职人才，保持高职教育自身的活力得以生存与发展。

Chinese ancient feminine literature had two characteristics: firstly,writers changed from the former noble women,official s wives to the later literary family whose works made a feature of exquisite style;secondly, content s changed from feminine querimony to a kind of ideality of showing feminism and perusing personality release during the Ming and Qing Dynasty,which had progressive significance.

初步研究古代女性文学的两大特点：一是创作主体由前期的贵族才女、官妇到后期的文学世家，创作格调高雅清婉；二是思想内容由前期的&闺怨&题材到后期明清时期的表现女性意识和追求个性解放、男女平等的理想，具有进步意义。

The main organic acid was citric acid, followed by malic acid. Citric acid and tartaric acid levels increased during storage. Malic acid and quinic acid increased from stage one to stage two. Shikimic acid level increased from stage one to stage three, then decreased slightly. Acetic acid changed unremarkably. Succinic acid changed not significantly from stage one to stage two, then increased and it was the highest in the stage three. The level in stage four and stage five was lower than the level in stage three.

五九香梨果实中的主要有机酸是苹果酸和柠檬酸，整个贮藏期间，柠檬酸和酒石酸含量处于上升趋势，苹果酸和奎宁酸含量在第一、二月贮藏期间增加，而后开始下降；莽草酸含量在贮藏期第一到第三阶段上升，而后略下降；琥珀酸含量在第一到第二阶段变化不明显，接着有上升的趋势，在第三阶段含量达到最高，第四和第五阶段略低于第三阶段；乙酸含量变化不明显。

Success criteria has changed, and the struggle of the men also should be changed, and advocate "struggle achievements of man" Rimula whether the match.

成功的标准改变了，奋斗中的男人也应该有所改变，倡导&奋斗成就男人&的劲霸是否也该与之匹配。

It changed power banlance among Lebanese sects, exposed the internal flaw of sectarism system, objectively harmed state authority, and changed historical course of Arab-Israeli conflict.

它改变了国内各教派之间的力量对比；暴露了教派分权制的内在缺陷；客观上损害了国家权威；部分地改变了阿以冲突的历史进程。

Altwasser had its name changed to "Stary Mlyn" about the same time Waldenburg was changed to Walbrzych.

Altwasser有其名称改为&施塔Mlyn&大约在同一时间瓦尔登堡改为瓦乌布日赫。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。