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Chapter one introduces Chopin's life, musical writing stages, writing style, and the origin and dramatic structure of his Ballade in G minor.

第一章概述肖邦的生平、创作阶段、创作风格、 g 小调叙事曲的体裁渊源和戏剧性结构

Secondary production of major groups of macrozoobenthos in Lake Donghu was estimated from field data. The number of generaion, P/B coefficients and production of 9 dominant species were as follows: B. aeruginosa, univoltine, 91. 56g WW/m〓. yr, 0.64; S. lacustre, univoltine, 43. 02g WW/m〓. yr, 3. 55; B. sowerbyi, univoltine, 11. 39g WW/m〓. yr, 4. 15; L. hoffmesteri, trivoltine, 7. 09 g WW/m〓. yr, 11. 9; P. choreus, bivoltine, 5. 03g WW/m〓. yr, 10.33; Ch. plumosus, bivoltine, 3. 37g WW/m〓. yr, 9. 10; T. chinensis, univoltine, 3. 76g WW/m〓. yr, 4. 49; T. akamusi, univoltine, 44. 60g WW/m〓. yr, 4. 60; Clinotanypus sugiyamai, univoltine, 0.48g WW/m〓.

较系统地研究了东湖底栖动物九种优势种的生活史、P／B系数和生产量，其结果如下：铜锈环棱螺：一年一代，生产量为91.56g WW／m〓。yr，P／B系数0.64；湖球蚬：一年一代，43.02g WW／m〓。yr，3.55；苏氏尾鳃蚓：一年一代，11.39g WW／m〓。yr，4.15；霍甫水丝蚓：一年三代，7.09 g WW／m〓。yr，11.9；花翅前突摇蚊：一年两代，5.03g WW／m〓。yr，10.33；羽摇蚊：一年二代，3.37g WW／m〓。yr，9.10；中国长足摇蚊：一年一代，3.76g WW／m〓。yr，4.49；大红德永摇蚊：一年一代，44.60gWW／m〓。yr，4.60；褐斑菱跗摇蚊：一年一代，0.48g WW／m〓。yr，7.59。

The total contents of phenol compounds of fresh Boehmeria nivea root was 200.24± 0.93 mg/g, which is 4.5 times higher than ethanol extracts of fresh Boehmeria nivea leaf, and its ability to remove ABTS free radical is 7.4 times higher than that of fresh Boehmeria nivea leaf, which is one third of Trolox's ability to remove free radical. Antioxidant components of hot water extracts of Boehmeria nivea leaf exhibited 55 and 67% lower than that of fresh leaf respectively.

sulfonic acid］和DPPH(α，α-diphenyl-β-picrylhydrazyl)自由基为最高，其次为热水萃取物和冷水萃取物，而新鲜苎麻根乙醇萃取物总酚类含量为200.24 ±0.93 mg/g，约高於新鲜苎麻叶乙醇萃取物的4.5倍，其清除ABTS自由基能力是新鲜苎麻叶乙醇萃取物的7.4倍，约为维生素衍生物的1/3倍。

In three year's rehabilitation after deforest, the aboveground phytomass of Salix spp. Caragana jubata, Dasiphora futicosa and R.

柳、头花杜鹃、鬼箭锦鸡儿和百里香杜鹃在恢复初期形成的地上植物量较高，分别达到35.3、31.0、23.7和21.5 g／m〓；而金露梅和烈香杜鹃较低，为4.4和1.5 g／m〓。

GTW-containing serum sign ificantly suppr essed pro liferation of spleno cytes . serum of GTW fed for more day s suppressed

细胞增殖反应有明显的抑制作用，且IC50分别为0.26μg/ml 和0.16μg/ml，雷公藤多苷含药血清对细胞增殖反应也有明显的抑

Confirm the optimum extraction technics of polyphenol of Humulus lupulus by single factor and orthogonal test: impregnant's concentration 70%, the ratio of materiel and impregnant 1:25, circumfluence temperature 45℃, time 1h and extraction quantity achieve 47.29mg/g dry Humulus lupulus at this condition.

通过单因素和正交试验确定了酒花多酚的最佳提取工艺：浸提剂为70%丙酮，料液比1：25，回流提取温度45℃，提取时间为1h，在此条件下多酚的提取量达到47.29mg/g干酒花。

The multi-drug resistance rate of Salmonella and E.coli were 91.80% and 100%.According to the genes sequence published in Genbank ,we analysed the value of Tm ,content of G+C, oligonucleotide dimer by DNAStar and Primer 5.0 software, and according to the construction of I integron ,we designed 3 pairs of primers to amplify intIl gene ,variable segment ,3"-conserved segment for detectting Salmonella and E.coli"s I integron.As a result , aimed genes were amplified and sequenced;The detection rate of I integron of 61 Salmonella and 48 E.coli were 81.97% and 66.67%.

据文献报道及GenBank中注册的基因序列，运用DNAStar软件分析同源率及Primer5.0软件对Tm值、G+C含量、引物二聚体等进行分析，根据Ⅰ类整合子的结构设计了3对引物，对Ⅰ类整合子的intI1、可变区、3'保守端进行扩增，检测沙门氏菌和大肠杆菌Ⅰ类整合子；扩增出了相应基因片段并测序；61株沙门氏菌和48株大肠杆菌中分别有50株和32株菌检测出Ⅰ类整合子，Ⅰ类整合子的检测率分别为：81.97％和66.67％。

On the basis of above, this paper combines the Jayant adaptive quantization and G.728's gain prediction to propose a scheme fit for designing gain codebook of Low Delay Code Excited Linear Prediction, in which the exact gain value is adaptively predicted and quantized.

以此为基础，将Jayant的自适应量化与G.728的增益预测结合起来，提出一种适合于设计低时延码激励线性预测的增益码书的方案。

Five new bacterial diseases of Ligularia fischeri, Vigna angularis , Brassica juncea var.japonica, Aconitum coreanum and Silybum marianum in Jilin province were firstly reported in the world; and their sympotoms of the diseases were described in detail. According to the configuration of the pathogens observed by electrical microscope, Gram staination, pathogenicity, cultural characters, physiological and biochemical characters, as well as G+C mol%, the pathogens were identified respectively .

首次报道了马蹄叶腐烂病、红小豆溃疡病、黄花乌头顶枯病、江户菜软腐病和水飞蓟软腐病在吉林省的发生，详细描述了该五种病害症状及危害情况；通过对分离的病原菌的电镜形态观察、革兰氏染色、致病性、培养性状、生理生化性状、G+C mol％等方面的测定，依据《Bergey's Manual of determinative Bacteriology》9th ed相关部分，初步确定了其病原菌的分类地位并对病原菌进行了室内药剂筛选。

Precocene could induce macropter, the more macropterous adult were found the higher titer of preconece was applied to the larvae, and the macropter inducement was more effective at the 3rd instar than at the 4th instar, the macropterous adults rates were 100% or 86.67% respectively when S. furcifera were treated by 10μg/μl or 100ng/μl preconece at the 3rd instar.

早熟素具有明显的长翅化效应，随着处理浓度的增高，被处理的白背飞虱若虫形成的长翅型成虫数也逐渐增加，且早熟素在3龄期处理对白背飞虱长翅诱导作用强于在4龄期进行的处理，如在3龄期处理时，10μg/μl和100ng/μl的处理组长翅型成虫比率分别高达100%和86.67%。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。