无选择的

In order to achieve high whiteness bleaching, it is the key to combine various chlorine-free bleaching sequences reasonably and select suitable aid agents, activating agents and chelants for raising the efficiency of bleaching agents and improving the bleachability of pulp.

如何对各种无氯漂剂进行合理组合，以及选择合适的助剂、活化剂或螫合剂来提高漂剂的漂白效率和改善纸浆的可漂性，是实现TCF高自度漂白的关键。

Three methods and 3 calculating formula were used to choose for concrete operation according to the idea at urine iodine assayed with cerous sulfate reducing reaction by which WHO and ICCIDD draw up the preventive and curative criteria of iodine deficiency.

本文根据&WHO与ICCIDD制定的碘缺乏病防治标准与方法&中硫酸铈还原反应测定尿碘的意图，采用3种方法和3种计算公式对具体操作进行选择，并对原标准对照计算法的不合理以及计算误差对评价尿碘水平的效能进行了探讨。结果表明：（1）方法Ⅰ存在仪器误差，准确度不佳。方法Ⅱ线性关系和准确度较理想，但操作不便计算麻烦。方法Ⅲ线性关系和准确度与方法Ⅱ无差异，操作和计算简便、节约试剂。

The way you play your money is a personal choice, but good money management can be achieved simply and without cramping your style.

的方式来发挥你的钱是个人的选择，但良好的资金管理，才能实现简单，无绞痛你的风格。

The longest time was 22 months.the shortest time was 12 months. Conclusion The extraction planing of missing the first molars in class Ⅰmalocclusion is different from routine extraction mode.This clinical study indicated that it should chose nimble planing and for decurtate treatment time,according to arch crowding, profile and existing of the third molars.

第一磨牙缺失的患者在I类错牙合畸形中的拔牙模式有别于常规，要根据患者牙弓的拥挤程度，面型突度及有无第三磨牙等情况选择治疗计划和有利于缩短疗程的矫治方法。

Application of pancreaticoduodenectomy for potentially malignant endocrinal tumor in pancreatic head, the value of surgical procedure in patient asymptomatic primary hyperparathyroidism or in patient with gastrinoma with MEN-1 , etc.

比较有代表性的包括低危组的分化型甲状腺癌患者是否应作甲状腺全切除、胰头部恶性倾向的内分泌肿瘤是否需作胰头十二指肠切除、无症状甲状旁腺腺瘤患者应手术还是随访观察、合并MEN-1的胃泌素瘤患者是选择手术切除抑或药物控制等等。

And the basic function that the woman already surmounted shoe to the choice of the shoe, jump rise to be mixed for ego advocate reveal, obtain self-confident, self-respect and cheerful always do not have the libidinal demand that stops.

而女人对鞋的选择已超越了鞋子的基本功能，跃升为自我宣扬和展示，获得自信、自尊与愉悦的永无止尽的欲望需求。

Five synthesis methods of AlN powder were discussed, namely direct nitrogenation of Al powder, carbothermal reduction of Al2O3, chemical vapor deposition, sol-gel method, self-propagating high-temperature synthesis and plasma chemical synthesis. The choice of AlN sintering additives and five sintering technologies were analysed, namely hot pressing sintering, pressureless sintering, spark plasma sintering, microwave sintering and self-propagating sintering. The preparation processes of AlN substrate and its influencing factors were expounded.

介绍AlN陶瓷的典型性能和导热机理；讨论AlN粉末的5种合成方法：铝粉直接氮化法、Al2O3碳热还原法、化学气相沉积法、溶胶凝胶法、自蔓延高温合成法和等离子化学合成法；分析AlN烧结助剂的选择和5种烧结工艺：热压烧结、无压烧结、放电等离子烧结、微波烧结及自蔓延烧结；阐述AlN基板的制备工艺及其影响因素。

Finally the application of the homemade ODS for MSPD and the economical availability of the product was evaluated. Results show as the following: 1. It is a simple method for the preparation of a bonded octadecyl phase which has large particle and high extent of coverage of the bonded phase.

研究结果表明：①采用大粒径无定形硅胶为基质，选择十八烷基三氯硅烷为硅烷化试剂，完整地合成了一种大颗粒、高表面积的ODS键合相，合成的ODS可作为基质固相分散MSPD的固相分散剂，用于样品的前处理。

And the most important choice of biological construction in 21 century is toconstruct some crowded , mixed functional buildings and avoid planless land use as much as possible .

21世纪的人类生态建设最重要的选择就是根据&就近原理&建设一些密集的多功能的复合型建筑，尽可能地避免无计划地使用土地。

So, city should be regarded as a life system,similar to other ones. At the same time,city isdesigned for human beings. And the most important choice of biological construction in 21 century is toconstruct some crowded, mixed functional buildings and avoid planless land use as much as possible.

因此，城市应被看作是一个生命系统，类似于其它生命系统，诸如生物体一样共同遵循生态法则，同时城市应回到为人而设计的初衷。21世纪的人类生态建设最重要的选择就是根据&就近原理&建设一些密集的多功能的复合型建筑，尽可能地避免无计划地使用土地。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。