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In this paper,using the classification for the point of general surface in differential geometry,a new combination that relies on the type of point on real conicoids is studied,and then can know more about the shape of conicoid.

利用微分几何中对一般曲面上点的分类来研究实二次曲面依点的类型的又一重要新组合，从而对二次曲面的形状有进一步的认识。

The platoon arms embattle in ball catch and attack in preventing drilling, the point of view that reflecting connection, progress everywhere, point of view that contradiction changes, subjective the viewpoint of the viewpoint that unites with objective look and practice, make the door

在门球的排兵布阵和攻防演练中，处处体现着联系、发展的观点、矛盾转化的观点、主观和客观相统一的观点以及实践的观点，打门

From 2004 to 2007, 34 cases were treated with extrapedicular screw fixation in Department of Orthopaedics, Third Affiliated Hospital of Sun Yat-sen University. The screw entry point, angle, depth and diameter were measured and defined on the thoracic vertebrae pedicle by CT thin-slice scan in standard prone for all cases before operation. The screw entry point was located at the tip of transverse process. The average inclination angle should be 10°-20° headward and 30°-40° toward neutral line respectively. The screw was inserted and entered into the vertebral body along the external cortex of pedicle. The integrity of cortical bone around screws, the distance to segmental blood vessels and the penetration of cortex were observed after operation to evaluate the accuracy and safety of screw placement.

应用椎弓根外内固定技术2004/2007年在中山大学附属第三医院骨科治疗34例患者，固定前采用CT加密扫描测量进钉点、进钉点至椎体前缘的深度、进钉角度和直径，固定中椎弓根钉入点为横突尖，进钉方向为平均向头侧倾斜10°~20°、与中线成角30°~40°，顺椎弓根外侧皮质进入椎体，固定后CT加密扫描观察螺钉周围的皮质骨是否完整、是否靠近节段血管、是否穿透皮质骨，评价置入钉的准确性和安全性。34例患者共置入160枚胸椎椎弓根螺钉，固定后CT加密扫描和X射线片观察到148枚(92.5%)螺钉置入准确，12枚(7.5%)螺钉发生错置。

This thesis starts with analysis of the practical advantages of electronic business comparing with the traditional ones and the basic conditions of developing electronic business. It claims that taxation is a difficult point of electronic business, and points out fell main problems of taxation on the reference of methods of basic problems coped with electronic business by some international organizations and governments. On the base of this, it attempts to point out the basic clues of resolving the problems in commercial taxation of China today and our counter-measures and suggestions. And this can serve for the administration of taxation in China, promoting it to link with internation as soon as possible and become one of the strong countries, which is internationlization ineconomic information.

本文从分析电子商务与传统商务相比较的现实优越性及发展电子商务的基本条件入手，认为税收问题是电子商务的难点；并通过借鉴国际组织和各国政府对电子商务税收问题的基本处理作法，进一步提出电子商务中的几个主要税收问题；在此基础上，通过借鉴国际上对电子商务税收问题处理的基本经验和作法，试图提出解决现阶段我国电子商务税收问题的基本思路和应采取的对策与建议，以期使我国税收管理尽快与国际相接轨，迎头赶上国际经济信息化发展的新浪潮。

Deconstruction is the name given by French philosopher Jacques Derrida to an approach (whether in philosophy, literary analysis, or in other fields) which rigorously pursues the meaning of a text to the point of undoing the oppositions on which it is apparently founded , and to the point of showing that those foundations are irreducibly complex, unstable or impossible .

解构主义这个术语是由法国哲学家雅克。德里达发明的，指的是一个研究方式（不管是在哲学、文学分析或其它领域），这种方式不懈地追求文本的意义，几乎要到推翻作为其建立基础的对立面的程度，并力图证明这些基础的复杂性、不稳定性和不可能性是不可降低的。

The mermaid dream is interesting because at that point Harry knows from the egg clue that the second task involves the merpeople taking his most valuable possession and he has to go fetch it back; since he's thinking in terms of material possessions rather than risking the lives of living people, naturally the Firebolt is the symbol of what he values most, an interesting point when considering some of Harry's other dreams in which the Firebolt appears.

美人鱼的梦很有趣，因为就那一点来说，哈利从蛋中的得到了线索，第二个任务就是人鱼夺走了他最珍贵的人，而他必须去把人带回来；他花了很长时间，想他最珍贵的物品是什么，而没有想他要救人的生命，自然，火弩箭是他最珍贵物品的象征，细想哈利一些有火弩箭出现的梦，这一点就变得很有趣了。

The intensity and way of the cold high atmospheric pressure center,Ф568 (the latitude at the nodical point of the 5680 geopotential meter line with the 120°E line in the 500hPa high altitude) and Ф850(the latitude at the nodical point of the 0℃ temperature lute with the 120°E line in the 850hPa high altitude) were closely related to the minimum temperature. The equation of short-term forecast of low temperature weather for Fuzhou, Xiamen and Shaowu was established by stepwise regression analysis. The detemperature rate was estimated by cloud cover, wind velocity, humidity (N20, F20, U20) at 20:00 o'clock.

通过对历史资料分析，利用逐步回归分析方法分别建立了福州、厦门和邵武三个探空站最低气温t的短期预报方程，再利用各地当晚20时的云量、风速、湿度(N20、F20、U20)值估算当晚的降温幅度、进一步对最低气温t进行短时临近预报，然后结合各地果树主栽品种及其抗低温冻害指标、及时发布低温冻害预警预告，构成了福建省冬季果树冻害低温预报预警模式。

First, based on the research of vocality art and vocalization, I discuss how to set up reasonable aesthetics concept on tenor"s voice, then expatiate on the characteristics,of the tenor"s voice in bel canto and the theoretic significance of setting up reasonable sound aesthetics concept. This essay is mainly on the way and key point of constructing tenor" s voice, especially solving the core problem of alt skill. The essay argues that the construction of tenor" s voice is based on the mediant and undertone sections; finding the phonate source, practice step by step, surrounding the point , string and side of the voice; train the students using suitable vowels according to the students with different characteristics ; emphasizing that ten essential words are the golden key to solution of the core problem in the "closing " method.

首先从研究声乐艺术和发声方法的指导思想和出发点着手，探讨了如何建立科学的男高音声音审美观；进而阐述了美声唱法中男高音的声音特点及建立科学审美观的理论指导意义；本文着重提出了构建男高音声音的方法与要领(特别是解决高音技术这一核心问题)，本文认为男高音声音构建先以中、低声区为基础，从找发声点开始，围绕声音的点、线、面逐一训练，同时根据不同特点的学生选择合适的母音进行训练，强调了&关闭&唱法中十字要领是解决核心难点的金钥匙。

And by the end of March this year, China Merchants Securities Food and Beverage industry researcher Wei-Hua Zhu also issued a "tribute wine Furui: Year Protoplasmic edge here," the report, he believed that the company is in the upward inflection point of the period, in addition to product quality, there are two main selling point: a Gujing Group is actively restructuring, the current team the prime of life; Second Year Protoplasmic clear positioning of wine, an increase quickly, this year is expected to achieve earnings per share 0.32 yuan, it is recommended to focus on, the length of the investment strategy Safe.

而在今年3月底，招商证券食品饮料行业研究员朱卫华也发出《古井贡酒：年份原浆初露锋芒》的报告，他认为公司正处于向上的拐点时期，除了产品质量过硬，还有两大卖点：一是古井集团正在积极改制，现任团队年富力强；二是年份原浆酒定位清晰，增长很快，今年每股收益有望实现0.32元，建议重点关注，投资策略长短皆宜。

Methods 15 SD rats, 8 males and 7 females, were set to receive radiant-heat stimulus at 5 different measure points-right and left footplates, tail root, proximal trichotomous point of the tail and distal trichotomous point of the tail to measure their escape response latencies in a constant ambient temperature (21-23℃) at 3 different time points-9:00, 15:00 and 20:00 in 7 consecutive days.

15只SD大鼠，雌7只，雄8只，在恒定的环境温度下，连续7d分别在每天的9：00、15：00和20：00采用热辐射刺激大鼠双足底、鼠尾根、鼠尾近侧3分点和鼠尾远侧3分点共5个不同的刺激点，测定每个刺激点对刺激反应的潜伏期。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐