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In this paper,the Lactate dehydrogenase, malate dehydrogenase,superoxide dis-mutase of five tissues of Carassius auratus gibelio; Cyprinus carpio Linnaeus; Esox americanus Gmelin; Leuciscus waleckii in Dalai Lake were studied by vertical polypropylene gel electrophoresis and the isozyme composion of four kinds of fishes were obtained. Then the analysis of the expressing specify of 3 kinds of isozyme in different tissues and loci were carried on and the genetic base of isozyme system was discussed.

本实验采用垂直板聚丙烯酰胺凝胶的电泳方法对达赉湖的野生鲤鱼、银鲫、狗鱼、东北雅罗鱼的五种组织脏器(肌肉、心脏、肝脏、脑、眼睛)的三种同工酶(苹果酸脱氢酶、乳酸脱氢酶、超氧化物岐化酶)进行了初步研究，获得了达赉湖四种鱼类物种的同工酶谱，在此基础上对同工酶在不同组织的表达差异和基因位点进行分析，探讨其同工酶系统的遗传基础。

The article simply intrduces the working principle of Scanning Electron Microscope,and dis-cusses the application of Scanning Electron Microscope with EDS in gemmology to the identify gems , synthetic gems and optimizing gems and so on.

本文简要介绍了扫描电子显微镜的工作原理，并结合能谱仪，探讨了扫描电子显微镜在宝石学中鉴定天然宝石与合成宝石及优化宝石等方面的应用。

Genetic analysis of soybean resistant to soybean nematode race 5. Crop Sci., 1989, 29:1181～1184.［4］Qiu B, Sleper D A et al. Inheritance of resistance to Heterodera glycines races 1,3, and 5 in Peking. Soybean Gen. Newsl., 1996, 23:183～185.［5］Rao-Arelli A P. Allelic loci in Peking soybean controlling resistance to Heterodera glycines races. Soybean Gen. Newsl., 1995, 22:170～172.［6］Rao-Arelli A P. Inheritance of resistance to Heterodera glycines race 3 in soybean accessions. Plant Dis., 1994, 78:898～900.［7］Golden A M, Epps J M, Riggs R G et al. Terminology

随机选取30个F3代的株系，每个株系随机选取10～15个单株，进行上述孢囊线虫的接种鉴定，设抗感亲本作对照。8个株系抗病，18个株系分离和4个株系感病。F3代株系间的抗感分离比例确认兴县灰布支黑豆对大豆孢囊线虫14号小种的抗性是由3对基因控制、一对隐性和两对显性基因、隐性基因上位、两对显性基因互补的遗传假设是正确的。

A type of novel dis-substituted α-arylglycine derivatives was synthesized in high yields and high regioselectivity via the stepwise Friedel-Crafts reaction of phenols with N-tosyl imino ester promoted by TiCl〓.

发现在Mg／MeOH／超声波条件下，能高产率的得到N-Tos裂解后N-Boc保护的α-芳香甘氨酸衍生物，实现了一条简单、实用的合成N-Boc保护的α-芳香甘氨酸衍生物的方法。

Preoperative staging of rectal cancer by intrarectal ultrasound ［J］. Dis Colon Rectum, 1985; 28(1): 42-46.［8］ Greene FL, Page DL, Fleming ID, et al Eds. AJCC cancer staging manual ［M］.

经直肠超声联合血清淀粉样蛋白A术前评估中低位直肠癌与手术决策的随机对照试验［J］。

Enhancement emerged around the operative area in early postoperative period shows tendency of gradual reduction or dis appear ance until malacia appear s in the original enhancement area.

术后早期在术区边缘出现的增强，追踪观察有逐渐减弱或消失的趋势，直至在原增强部位形成软化灶。

The recognition possibility for intra-class target dis tortion version and misrecognition possibility for inter-class target are two m ain performances of an automatic target recognition system.

对同类目标畸变不变的正确识别率与不同类目标分类误识别率是衡量一个自动目标识别系统的两个最重要性能指标。

Cardiac toxicity associated with intravenous erythromycin lactobionate:two case reports and review of the literature ［J］.Pediatr Infect Dis J,1993;12:688-691.［5］Nattle S,Ranger S,Talajic M,Lemery R,Roy D.

其中IKr 激活较快，在较低膜电位水平时即可被激活，在大于0mV膜电位时具有明显的内向整流作用，对第Ⅲ类抗心律失常药E-4031特异性敏感。

The conception of safety level and its deter- mination method for counter- blower system of poly- olefine bunker were introduced, to avoid the occurring of fire and explosion accident caused by static dis- charge because of ventilation dead zone.

介绍了聚烯烃料仓反吹风设置中安全料位的概念及其确定方法，以避免由于通风死区造成静电燃爆事故的发生。

Three R otary dis tricts," he said,"and it is theref ore a special

我们来自一个只有500万人口的小国家只有三个扶轮

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。