the 1

Results The tumors were divided into three types according to the CT findings. Type I: regular, homogeneous density and well-defined,there were 30 patients, included benign mixed tumor(n=29) and adenolymphomas(n=1); Type II:irregular, heterogeneous dentsity, poordefined, there were 15 patients, included benign mixed tumor(n=7), malignant mixed tumor (n=2),adenolymphomas(n=3), hemagioma(n=2),mucoepidermoid carcinoma(n=1). Type III: irregular and could not definded, there were 7 patients, included malignant mixed tumor(n=2), mucoepidermoid carcinoma(n=2), adenoid cystic carcinoma(n=1), malignant lymphoma(n=1), acinic cell carcinoma(n=1). Conclusion CT have important values in location and qualitative analyses of parotid gland.

结果 肿瘤按CT表现分三类：52例患者中，I类30例，形态规则呈类圆形，密度均匀，边缘清楚，除1例腺淋巴瘤外，29例均为良性混合瘤；II类15例，形态不规则，呈分叶状，密度欠均，边界较清或模糊，其中7例良性混合瘤，2例恶性混合瘤，3例腺淋巴瘤，2例血管瘤，1例黏液表皮样癌；III类7例，形态不规则，边缘无法确定，其中恶性混合瘤2例，黏液表皮样癌2例，囊腺癌1例，恶性淋巴瘤1例，腺泡细胞癌1例。

The Flinn diagram of anisometric grains are divided by lines a = 1 ,b= 1 ,and a =b,and curves a2b= 1 and ab2 = 1 into ten subregions ,corresponding to ten different combinations of ex,ey,ez,and strain types.

非等轴颗粒付林图解由直线a=1、b=1、a=b和曲线a2b=1、ab2=1分割成10个微区，并对应于不同的ex、ey、ez组合和应变类型。

In part one, the reactions of some active fluorine-containing compounds such as 2, 2-dihydropolyfluoroalkanoic acids and ethyl 2-hydropolyfluoroalkenoates were studied and various fluorine-containing heterocyclic compounds were synthesized. Using 2, 2-dihydropolyfluoroalkanoic acids as the starting material, 4-fluoroalkyl quinolin-2-ols, 2- [ -1-hydropolyfluoro-1-alkenyl] -4H-3, 1-benzoxazin-4-ones, 1-aryl -4, 9-dihydro-3-fluoro-alkyl-1H-pyrazo [3, 4-b] quinolin-4-ones, 5-fluoroalkyl-12H-quin olino [2, 1-b] quinazolin-12-ones, 4-fluoroalkyl-1, 3-dihydro-1, 5-benzodiazepin-2-ones and 4-fluoroalkyl-2H-pyrido [1, 2-a] pyrimidin-2-ones were synthesized through its condensation reaction with anilines, anthranilic acid, N'-aryl-o-aminobenzamides, o-nitro aniline, o-amino pyridine and their derivatives and the subsequent transformations. 5-Fluoroalkyl isoxazolidines, 3-fluoro-3-fluoroalkylisoxazolidino [4, 3-c] quinolin-4-ones, 3-fluoroalkylisoxazolino [4, 3-c] quinolin-4-ones and 2-aryl-3per fluoroacylindoles were synthesized by inter-and intramolecular 1, 3-dipolar cycloaddition of fluorine-containing olefins and nitrones.

第二部分，我们研究了α，α-二氟苄基卤类化合物的亚磺化脱卤反应、产物的转化及全氟烷基亚磺酸盐与芳环化合物的全氟烷基化反应，发现全氟苄基碘或溴及α，α一二氟苄基溴在保险粉等亚磺化脱卤试剂引发下可生成相应的亚磺酸盐；全氟苄基亚磺酸盐与氯气或溴反应可生成全氟苄基磺酰氯或磺酰溴；在烯烃存在下，全氟苄基碘则与烯烃发生加成反应，生成相应的1：1加成产物；在三价醋酸锰的作用下，部分芳香化合物如茴香醚，二甲氧基苯，吡啶，喹啉等可以和过量的全氟烷基亚磺酸盐发生双全氟烷基化反应，反应表现出一定的区域选择性，产率良好。

Their Mn accumulated-concentration of shoots were as high as 26.84 mg·plant-1 and Mn concentration of their leaves were 24447.1 mg·kg-1 when Mn concentration was 15000μmol·L-1 in solutions under the condition of their grow 48d in aquicultural experiments. Their biomass decreased with increasing of Mn concentration levels, the differences of their biomass of shoots were remarkably differrent (P=0.05), comparing control.

营养液培养条件下生长48d的水蓼地上部分积累量最高达26.84 mg·plant-1；当Mn供应水平为15000μmol·L-1时，水蓼叶锰含量达到24447.1 mg·kg-1；水蓼生物量随着锰处理浓度的增加而减少，在锰浓度处理≥8000μmol·L-1时，水蓼地上部生物量与对照相比，差异达显著(P=0.05)。

Surgical strategies included: 23 cases with meso-caval shunt, 8 cases with splenectomy and spleno-renal vein shunt, 1 case with porta-caval shunt, 2 cases with paraumbilical vein-jugular vein shunt, 3 cases with portal azygous disconnection, 1 cases with splenectomy and portal azygous disconnection, 1 case with sigmoidostomy and closed the fistula of sigmoid six months later, 1 case with resection of part of small intestine due to acute extensive thrombosis of portal vein system, 4 cases with selective superior mesenteric artery and splenic artery thrombolytic infusion therapy, 2 cases remained no-surgical option and underwent conservative treatment.

行肠系膜上静脉-下腔静脉分流术23例；脾切除、脾静脉-肾静脉分流术8例；门静脉-下腔静脉分流术1例；附脐静脉-颈内静脉分流术2例；门奇静脉断流术3例；脾切除、门奇静脉断流术1例；乙状结肠暂时性造瘘，6个月后闭瘘1例；大部分小肠切除术1例；经股动脉插管溶栓4例；未行手术2例，仅给予护肝及对症治疗。

From the optically active 2, 2'-dihydroxy-1,1 '-binaphthyl, through esterification, Kumada coupling, bromization, hydrolization and Wittig elimination reaction, 2,2'-diethynyl-1,1'-binaphthyl was obtained.

从光学活性的2，2'-二羟基-1，1'-联萘出发，经过酯化，Kumada偶联，溴化，水解和Wittig消除反应五个步骤，成功地获得了具有单一手性的的2，2'-二乙炔基-1，1'-联萘。

The recombinant enzyme hydrolyzed p-nitrophenyl esters but not tributyrin and tricaprylin, and exhibited the highest specific activity (1.1 μmol min-1 mg-1) to p-nitrophenyl caprylate.

SsoPEst不水解三酰甘油酯，可以水解对硝基苯酚酯，对对硝基苯酚辛酯水解活力最高，为1.1 μmol min-1 mg-1，催化对硝基苯酚酯水解的最适pH为5.5，最适温度为80 °C，酶溶液置于80 °C 热处理1小时仍有60 %活力。

The results showed that during the 45 days experimental time the fresh weigh of Myriophyllum spicatum L, Hydrilla verticillata L and Cerato-phyllum demersum L were 0.92 g, 0.27 g, 1.11 g and 0.56 g, 0.41 g, 0.87 g in medium nutritional condition TN 1.86 mgL^(-1; TP0.087 mgL^(-1) and eutrophic condition TN 2.47 mgL^(-1; TP0.16 mgL^(-1), respectively. The largest single plant biomass of Myrio-phyllum spicatum L and Ceratophyllum demersum L in in middle nutritional condition were over 39% and 22% higher than those in eutrophicated condition, but that of Hydrilla verticillata L was less than 51%, which shown that Myriophyllum spicatum L and Ceratophyllum demersum L grow better than Hydrilla verticillata L in middle nutritional condition.

研究结果表明，在45 d的培养过程中，狐尾藻、轮叶黑藻和金鱼藻在中营养TN1.86 mgL^(-1； TP0.087 mgL^(-1)和富营养TN2.47 mgL^(-1； TP0.16 mgL^(-1)水平下的单株最大生物量分别是0.92、0.27、1.11、0.56、0.41和0.87 g，狐尾藻和金鱼藻在中营养水平下单株最大生物量分别较富营养水平下高出39%和22%，而黑藻在中营养水平下单株最大生物量较富营养水平下低了51%，表明狐尾藻和金鱼藻在中营养水平下的生长较黑藻好。

The results showed that plant height, branching number, dry matter weight and uptake of B and Mo of Chamaecrista rotundifolia were increased by application of 1.0, 3.0, 7.0 mgkg^(-1) of boric acid or 0.5, 1.0, 4.0 mgkg^(-1) ammonium molybdate, the stabilities of cell wall, cell membrane and chloroplast membrane structure enhanced, the number of chloroplast increased, and the best effects were observed by the application of 3.0 mgkg^(-1) boric acid or 4.0 mgkg^(-1) ammonium molybdate.

结果表明，施用1.0、3.0、7.0mgkg^(-1)的硼酸或0.5、1.0、4.0mgkg^(-1)的钼酸铵都能增加圆叶决明的株高、分枝数、干物质重和硼／钼元素的吸收，稳定细胞壁、细胞膜、叶绿体膜的结构，增加叶绿体的数量；其中以3.0mgkg^(-1)的硼酸或4.0mgkg^(-1)的钼酸铵为最佳施用量。

There was no significant difference on the density and biomass of phytoplankton between spring and summer.1.1.3 The dominant species of phytoplankton was as the following:Gomphonema sp.,Synedra sp.,Navicula sp.,Nitzsschia closterium,Cymbella sp.,Closterium sp..1.1.4 Comprehensive index demonstrated that the water quality was polluted slightly in Maqu section.1.1.5 A negative correlation was present between the density and biomass for phytoplankton and altitude in spring and summer.

1.1.4综合几种指数的综合评价，该流域水质呈轻度污染。1.1.5春夏两季，浮游植物密度、生物量均与海拔呈负相关性，即随着海拔的上升，浮游植物密度、生物量呈下降趋势。1.2浮游动物群落结构1.2.1浮游动物共2门18种。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。