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Secondly, in terms of the dynamic development of harmony in chorus, this paper expounds harmony in chorus in different periods in the history of music: harmony in the structure of contrapuntus in the Renaissance chorus, harmony in contra-structure in Baroque chorus, harmony in chorus of the classical period, harmony in chromaticism the expansion of modes in the romantic period. These dynamic features of harmony display the principle of formal beauty in western chorus.

从合唱音乐的语言形式上看，作为美学特征的"和谐"表现在音程、和声、对位结构之中：从合唱音乐的历史发展上看，"和谐"则表现为文艺复兴时期对位结构中的"和谐"、巴洛克时期的对位与和声相结合中的"和谐"、古典主义时期的旋律与和声相结合的主调音乐中的"和谐"、浪漫主义时期半音化和声与扩张的调式中的"和谐"。

The story of three families lane was happened after the May 4th Movement of 1919 and great revolution period in Guangzhou, it is the story of a clerisy who named Zhoubing firstly as a forger. The novel reflects Family, neighborhood's change in great revolution period.

三家巷》的故事发生在"五四"运动后和"大革命"时期的广州，主要表现了"一个叫周炳的打铁出身的知识分子的半生经历"，它反映了家庭与邻里的传统关系在大革命动荡年代经历的冲击与变故。

And the ratio of the number of clock pulse in delay time and the number in signal period is the ratio of delay time and the signal period. It can get the phase difference from the ratio.

鉴相脉宽内的计数结果与原始信号周期内的计数结果的比值，即是鉴相脉宽与被测信号周期脉宽的比值，从而计算出相位差的测量方法。

Later of Yanshan movement is main period of oil-gas migration and congregation,it is also main period of coalification in Permo-Carboniferous system ^ Triassic system and Jurassic system.

燕山晚期是盆地油气运移和聚集的主要时期，也是石炭—二叠系、三叠系及侏罗系的煤化作用的主要时期。

Morphological conversion from spiralto coccoid forms occurred when HP was cultured with selenium and most of coccoid forms had fragmentary flagella and pilus; the effection of selenium to activity of urease, catalase, alkaline phosphatase is not exist or not evidence; selenium enable pET32a-vacA-E.coli BL21 which can express VacA produce yellow lipochrome, and the color become deeper with increasing of concentration of selenium; selenium can decrease expression of recombined VacA by restrain the growth of pET32a-vacA-E.coli,but can not influence activity and gene sequence of VacA; selenium can enhance the suppression effect of recombined VacA for gastric cancer cell, depress the index of cell multiplication and the forming rate of colony, decrease the number of cell in S period, increase total of cell in G period; After purified, the recombined VacA can be identified by VacA antibody.

体外实验结果表明：一定浓度的硒作用HP后，HP菌落数量随着硒浓度的增加而减少，菌落颜色由灰白色变为砖红色，溶血现象随硒浓度的增加和作用时间的延长而逐渐消失，HP的形态由弯曲形变为球形或椭圆形，鞭毛及菌毛出现脱落现象；硒对尿素酶、过氧化氢酶、碱性磷酸酶活性无影响或影响不明显；一定浓度的硒能使表达VacA的pET32a-vacA-E.coli BL21工程菌产生脂溶性砖红色色素，颜色随硒浓度增加而加深；一定浓度的硒通过抑制pET32a-vacA-E.coli BL21工程菌的生长，减少重组VacA表达量，但不影响其空泡毒活性及编码基因序列；纯化后的VacA重组蛋白可被VacA抗体识别，具有良好的抗原性。

We also discovered that selenium can decrease hematolysis and effects function of vacuole toxin of HP. morphological conversion from spiralto coccoid forms occurredwhen HP was caltured with selenium and most of coccoid forms had fragmentary flagella and pilus; the effection of selenium to activity of urease, catalase, alkaline phosphatase is not exist or not evidence; selenium enable pET32a-vacA-E. coli BL21 which can express VacA produce yellow lipochrome, and the color become deeper with increasing of concentration of selenium; selenium can decrease expression of recombined VacA by restrain the growth of pET32a-vacA-E. coli, but can not influence activity and gene equence of VacA; selenium can enhance the suppression effect of recombined VacA for gastric cancer cell, depress the index of cell multiplication and the forming rate of colony, decrease the number of cell in S period, increase total of cell in G period; After purified, the recombined VacA can be identified by VacA antibody.

结果：体外实验结果表明：一定浓度的硒作用HP后，HP菌落数量随着硒浓度的增加而减少，菌落颜色由灰白色变为砖红色，溶血现象随硒浓度的增加和作用时间的延长而逐渐消失，HP的形态由弯曲形变为球形或椭圆形，鞭毛及菌毛出现脱落现象；硒对尿素酶、过氧化氢酶、碱性磷酸酶活性无影响或影响不明显；一定浓度的硒能使表达VacA的pET32a-vacA-E.coli BL21工程菌产生脂溶性砖红色色素，颜色随硒浓度增加而加深；一定浓度的硒通过抑制pET32a-vacA-E.coli BL21工程菌的生长，减少重组VacA表达量，但不影响其空泡毒活性及编码基因序列；硒能增强重组VacA对胃癌细胞的抑制作用，使细胞分裂指数和集落形成率降低、S期细胞数量减少，G1期细胞总数增加；纯化后的VacA重组蛋白可被VacA抗体识别，具有良好的抗原性。

The removal of CODcr: During the period of high temperature, when the hydraulic load increases gradually from 4.92 ml/L-d to 39.39 ml/L-d, the water quality of the effluent doesnt changes too much and the removal ratio stabilizes above 70% mostly; During the period of low temperature, the removal ratio of CODo can only reach 40% even if the hydraulic load is as low as 4.92 ml/L-d.

COD_的去除：高温时期，当水力负荷在4.92～39.39ml／L·d的范围内逐渐增加时，出水水质变化不大，去除率基本稳定在70％以上；低温时期，即使采用4.92ml／L·d的低水力负荷进水，COD_的去除率也只能达到40％左右。

Some basic properties of σ- LFSR over F4 are studied, such as nonlinearity, cycle structure distribution of state graph, the largest period and counting problem related. The conclusions are as follows:The coefficient ring of σ-LFSR is isomorphic to the matrix ring over F,. The cycle structure of σ- LFSR is consistent with that of the determinant of the corresponding polynomial matrix if and only if the feedback polynomial of - LFSR does not contain nontrivial factor over F2,. The counting formula of the number of σ- LFSR with inconsistent cycle structure is also showed in that part. The period of σ-LFSR with degree n is maximum if and only if the determinant of the corresponding polynomial matrix is the primitive polynomial with order 2n over F2,.

本文研究了有限域F_4上的σ-LFSR的一些基本性质，如非奇异性、状态图的圈结构的分布、最大圈的充要条件及相关的计数问题等，得到以下结论：σ-LFSR的系数环同构于F_2上的矩阵环；σ-LFSR的状态图的圈结构与对应的多项式矩阵的行列式的圈结构一致的充要条件为σ-LFSR的反馈多项式不含有非平凡的F_2上的因式，给出了圈结构不一致的σ-LFSR的计数公式； n次σ-LFSR周期达到最大，当且仅当对应多项式矩阵的行列式为F_2上的2n次本原多项式。

based on the viewpoint that sciences and human languages are developing collaterally,this paper attempts to point out that the research on sciences in a certain period reflects the evolution of human mind during the same period. such kind of research should be in the scope of human linguistics.

摘 要：文章从科学与语言实际上是并行发展的这一视点出发，以《比亚韦斯托克宣言》的主要观点为依据，试图说明，通过对某一历史时期某些学科的术语发展水平的研究，可以透视出该时期人类思维的进化与发展水平。

Primitive accumulation period of British colonial expansion during this period of colonial expansion, began in the 16th century until the late 18th century in the rise of the industrial revolution.

原始积累时期的殖民扩张英国在这一时期的殖民扩张，始于16世纪迄于18世纪后期工业革命的兴起。

When this modem is in stand-by mode, the Internet/Power light will be off.

当此机是在待机模式下，互联网/电源轻将赶走。

Undertook discussing to the optimal condition of the relation between dye structure and decolour principle and decolour.

对染料结构与脱色原理之间的关系及脱色的最佳条件进行了探讨。