查询词典 A.B.

Based on a brief review on developments of number system, a new developed pattern is proposed. The quaternion is extended to a matrix form aI+bA+cB+dC, in which the identity matrix I and three special matrices A, B, C correspond to number 1 and three units of imaginary number i, j, k, respectively.

在数系发展的基础上，提出了一种新的发展模式：四元数推广为矩阵形式aI+bA+cB+dC，其中单位矩阵I和3个特殊矩阵A，B，C分别相应于数1和虚数单位i，j，k。

In Beijing, the internationally renowned financial management and investment consultancy agencies meilin group to buy 30 million U.S. dollars in cash Beijing Yintai Center; Since then, investment banks Morgan Stanley dropped initial investment in Beijing, buy bodied man in the CBD; Japan Pacific Sim Transportation Company have signed a sale agreement with the glance; At the same time, Southeast Asia's largest real estate developers in the bar owned Shanghai early sell shares in the new Mau building projects, this year in February to 547.6 million yuan at the exclusive film Dongzhimen 14,700 square metres of land for the integrated development, early March, the bar owned and used 1.837 billion yuan to buy Central World Trade Center A, B two Grade a offices; Last April, the U.S. Keluoni Capital Group and the Shanghai Industrial Holdings Limited Shanghai Industrial Development Co., Ltd. subordinate co-sponsored Yangzi Fund spend 30 million U.S. dollars, the entire Beijing Cosco bought Block D offshore Shinkansen hotel-style apartments; Not long ago, China International Steel purchased a large class landmark building Zhongguancun Zhongguancun imposed financial center.

在北京，国际着名财务管理和顾问投资机构梅林集团以3000万美元现金入股北京银泰中心；此后，投资银行摩根士丹利在京投下首笔巨资，买下富力位于CBD的双子座；日本太平洋辛运公司与瞰都签下整售协议；与此同时，东南亚最大的房地产开发商凯德置地在年初卖掉上海新茂大厦项目股份之后，今年2月以5.476亿元人民币的高价独家拍得东直门1.47万平方米的综合开发用地，3月初，凯德置地又以18.37亿元买下中环世贸中心A、B两栋甲级写字楼；今年4月，由美柯罗尼资本集团和上海实业控股有限公司下属的上海实业发展股份有限公司共同发起的扬子基金斥资3000万美元，整栋购买了北京中远远洋新干线D座酒店式公寓；不久前，中钢国际出巨资购买了中关村5A级地标建筑中关村金融中心。

And the students? In October, we had a surprise "graduation" ceremony in Knoxville for the 40 who sparked my interest in Clayton. I donned a mortarboard and presented each student with both a PhD (for phenomenal, hard-working dealmaker) from Berkshire and a B share. Al got an A share. If you meet some of the new Tennessee shareholders at our annual meeting, give them your thanks. And ask them if they've read any good books lately.

至於那40位有功的学生，我们十月在Knoxville举办了一次特别的毕业典礼，我身著学士帽，亲自颁发每位学生一张Berkshire PhD(专门用以表彰对於Berkshire购并有功人员)外加每人一股Berkshire B股，至於Al教授则获赠一股A股，所以如果各位在今年的股东大会上遇到来自田纳西州的新股东，请向他们表示感谢，并记得顺便问问他们最近读了什麼新书。

Since the etiologic diagnoses of hepatitis A, B, C, D and E were established, there are still a part of patients with hepatitis in which the pathogenic causes can not be identified. After a lot of epidemiological and laboratory investigations, it was speculated that other parenterally transmissible pathogens causing human hepatitis existed.

自从建立起甲、乙、丙、丁、戊5种肝炎病毒的病原学诊断之后，仍有少部分肝炎患者的病因得不到明确，因此不少学者试图探索是否还有新型肝炎病毒的存在，并进行了大量的流行病学和实验诊断的研究，认为的确存在可经肠道外传播并引起人类肝炎的致病因子。1995年Simons等成功地克隆出2株黄病毒RNA序列，称之为GBV-A、GBV-B。

Cherry also contains a lot of vitamin A, B and a number of phenolic antioxidants.

樱桃中还含有大量的维生素A、B以及多酚类抗氧化物质。

Then the normal color for a week, during which Chinese medicine has been Baotai drink, the next day, playing a total of 3000ml of HCG needle 5. At 2:00 on August 17 there is a small amount of blood, August 17 to go to the hospital to check, and make a B-, has original heart tube Pollex Mobile, fetal survival, see embryo length within 36mm, intrauterine 20mm liquid separation of the dark District.

接着一个星期颜色正常、期间一直喝中药保胎，隔天打3000ml的HCG总共5 针。8月17日凌晨2点又出现少量鲜血，8月17日去医院检查，又做了B超，有原始心管博动，胎儿存活、内见胚胎长36mm，宫腔内分离20mm液性暗区。

Topological indexes of A , B , C and D were all obtained from the different combination of topological vertex degree. A QSAR equation for this series of compounds was established based on the multi-linear regression method and a new group of autocorrelation topological indexes. The results showed that the biological activity is linearly correlated with the volume and branching size of the quinclorac derivatives. Finally, new herbicide was designed based on all QSAR results.

针对应用经典结构参数和量子化学参数得出的结果不够理想的问题，对点价自相关拓扑指数进行了研究，建立了一组新型的点价自相关拓扑指数A、B、C、D；首次将该指数用于除草剂氯喹酸酯类化合物的定量构效关系研究中，建立了很好的定量构效关系方程，综合分析所有的QSAR结果设计出了潜在的新型除草剂氯喹酸烯丙酯。

Structure analysis indicates that it crystallizes in triclinic, space group P1, a =9.554(3)A, b =10.4874(18) A, c =14.027(2) A,α=91.873(15)°,β=91.879(19)°,γ=92.86(2)°. The polymeric anion of [(CH3)4N]As3S5 consists of adjacent 1∞[AS3S5]- chains linked together into a 1∞ [As6S10]2- double chains through planar As2S2 rings . A relatively undistorted Ψ-AsS4 trigonal bipyramidal geometry is observed for the participating As atoms.

b=10.4874(18)，c=14.027(2)，α=91.873(15)°，β=91.879(19)°，γ=92.86(2)°。化合物[(CH_3)_4N]As_3S_5结构中聚合阴离子由邻近的~1_∞[As_3S_5]~-通过平面环As_2S_2连接形成~1_∞[As_6S_(10)]~(2-)链，这种链通过每第二个结构单元环状As_3S_3结构单元的As原子连接组成双链结构，其结构中可观察到赝三角锥配位的ψ-AsS_4。

The total chlorophyll and chlorophyll a of Gleditsia japonica miq, Catalpa ovata G, Hippophae rhamnoides L decreased with pollution degree. So did the ratio of chlorophyll a and b.

山皂荚、梓树、沙棘叶片叶绿素总量、叶绿素a含量随着土壤被石油污染物污染浓度的增加而减少，叶绿素a/b比值下降。

Moreover, the actual allele frequency of most varieties deviates far from Hardy-Weinberg equilibrium. All PPB、na 、I、h、Gi and Fst have proved to be the references to elucidate that ISSR is a most powerful tool to analyze genetic diversity, compared with the RAPD marker and the allozyme marker is less strong ordinally. We could divided the 70 samples into A, B, C, D and E five groups using three methods according to genetic distance clustering. There is a bit displacement for few varieties in different clustering maps, but the most are similar to morphological analysis despite that there is still a great difference among cultivars in the same one group. The above results imply that the three methods have the different sensitivity and resolution in genetic distance analysis of close varieties. The Mantel test indicates that the results from the three kinds of markers have the significant correlation, which demonstrates that the number of the used three kinds of markers is enough to exactly detect the diversity of all 70 samples to ideal extent. And these methods can be used to evaluate the diversity of the whole group using the miscellaneous samples instead of the individual sample, of the Gerbera jamesonii are mainly from tissue culture plants. In conclusion, the above study results provide a reference for the application of three kinds of molecular markers to molecular marker-assisted breeding of flower. 2. The genetic diversity among the eight introduced cut-flower varieties of Ranunculus asiatica was analyzed by the ISSR markers. Based on the genetic clustering tree, all the colorful flower varieties are clustered into one group, and the white flower varieties into another group. Moreover, among the former group the yellow flower varieties are clustered into one sub-group, and the reddish flower varieties, such as rose color, pink, nacarat, are clusetered into another sub-group.

由三种分子标记的分析结果可以看出，等位基因平均值、观察杂合度、Fis值、Fit值皆较高，表明非洲菊等位基因较丰富，杂合基因偏多，且绝大部份品种的实际等位基因频率在品种内偏离了Hardy-Weinberg equilibrium；PP8、na、Ⅰ、h、Gi及Fst皆表明，ISSR检测遗传多样性的能力最强，其次是RAPD，等位酶最低；根据遗传距离进行聚类，三种方法都把70个品种分成A、B、C、D、E五个大组，每一组中除少数品种发生位移外，大部份品种分类结果相似，且与形态分析结果有相似性，但在每一组中，品种间的聚类差别较大，表明这三种方法在近距离品种间检测遗传变异时灵敏度及分辨力不同；Mantel检测表明，三种标记的分析结果有显著相关性，表明所用的三种分子方法的标记数量已经可以相对无偏地检测到70个品种间遗传变异；非洲菊为组培苗，三种标记的检测结果皆表明，混合样品可以作为个体样品的代表，对整个居群的遗传多样性进行评价；这些研究结果可为三种分子标记方法在花卉分子辅助育种中的进一步应用提供借鉴。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。