不同地

In the 3rd part of this thesis, two attempts to study the surface enhanced infrared spectroscopy of azobenzene acids monolayer on silver island films are discussed.

成功地在通过真空蒸镀的银岛膜基底上获得了偶氮酸LB膜的表面增强红外光谱，同时对偶氮酸LB膜在不同厚度的银岛膜上的表明增强红外光谱性质进行了详细的研究，进而对银岛膜上的表面增强红外光谱的机理进行了研究。

At first, surface enhanced infrared spectra of the azobenzene LB monolayer on silver film of different thickness is studied.

首次发现处于银岛之间的COOH基团经历着比处于银岛之上的COO〓大得多的吸收增强，为了进一步证明该结论，我们通过真空蒸镀、快速热退火等技术构筑了不同粒子大小和粒子分布的增强基底、原子力显微镜的研究结果表明，随着退火温度的提高银颗粒在逐渐增大，相应地银颗粒间的距离也在增加。

To evaluate the specificity of the PCR, genomic DNA of Theileria annulata,Babesia bovis,Toxoplasma gondii,Leishmania donovani and standard strain of N. caninum were used as a template in the PCR. For determining the detection limit of amplification procedure, PCR was run on a dilution series of genomic DNA from N. caninum（1.562 5-200 ng/ml）. Brain tissue samples of 32 aborted fetuses were detected by PCR-based assay, and 23 blood samples from mothers were tested by ELISA. Results The amplified DNA fragment （350 bp）had a high identity of 98% with the Nc-5 gene sequence of N.

以环形泰勒虫、牛巴贝斯虫、刚地弓形虫、杜氏利什曼原虫以及犬新孢子虫标准株DNA为模板进行扩增以验证PCR的特异性，采用紫外分光光度计测定犬新孢子虫标准株DNA浓度和纯度，取高纯度的DNA样品用灭菌水稀释，分别取不同量的DNA进行PCR扩增，确定PCR方法的敏感性；利用该方法对32份奶牛流产的胎牛脑组织样品进行检测，同时，对其中23份流产的母牛血样进行ELISA血清学检测，以评价犬新孢子虫PCR方法的检测效果。

In this paper, the change of back electromotive force current with the different PWM modes are analyzed in detail on the base of BLDCM model. According to theory and experiment ,ON-PWM type restrains the peak value of back electromotive force current and brings the lest effect to the motor control system.

基于无刷直流电动机的数学模型，分析比较了不同PWM调制方式下反电势电流的变化规律，并通过理论推导和仿真实验证明了当电机系统采用ON-PWM调制方式时，能有效地抑制反电势电流的峰值且对电机控制系统造成的影响最小。

Photo Gallery: London Landmarks A Scottish bagpiper draws donations and curious stares from the diverse shoppers on Oxford Street near Hyde Park.

意译：伦敦地界标图片画廊。一位苏格兰的吹风笛的人获得捐赠物和古怪的凝视来自不同的购物者在牛津街靠近海德公园。

independent audit is essenttially a group of contract among client,bailee and federation of cpa.those factors, such as economic activity's uncertainty,asymmetric information and limited rationality have resolved that contract is almost imperfect.so adverse selection and moral hazard always exist in all the course of signing and carrying a contract,and seriously in the responsibility insurance of cpa decided by professional characteristic of independent audit,and particularly in our country decided by "state-owned property right" and "public contract" of our state-owned enterprise.

独立审计实质上是委托人、受托人和注册会计师协会之间的一组契约的集合。经济活动的不确定性和复杂性，信息的不完全和不对称以及签约双方的有限理性等因素决定了契约总是不完备的，几乎在所有契约的签订和履行中，都不同程度地存在逆向选择和道德风险问题；独立审计的职业特点，决定了注册会计师执业责任保险中逆向选择和道德风险问题的严重性；我国国有企业"公有产权"和"公共契约"特性，决定了我国独立审计执业责任保险中逆向选择和道德风险问题的特殊性。

independent audit is essenttially a group of contract among client,bailee and federation of cpa.those factors, such as economic activity's uncertainty,asymmetric information and limited rationality have resolved that contract is almost imperfect.so adverse selection and moral hazard always exist in all the course of signing and carrying a contract,and seriously in the responsibility insurance of cpa decided by professional characteristic of independent audit,and particularly in our country decided by "state－owned property right" and "public contract" of our state－owned enterprise.

摘 要］独立审计实质上是委托人、受托人和注册会计师协会之间的一组契约的集合。经济活动的不确定性和复杂性，信息的不完全和不对称以及签约双方的有限理性等因素决定了契约总是不完备的，几乎在所有契约的签订和履行中，都不同程度地存在逆向选择和道德风险问题；独立审计的职业特点，决定了注册会计师执业责任保险中逆向选择和道德风险问题的严重性；我国国有企业"公有产权"和"公共契约"特性，决定了我国独立审计执业责任保险中逆向选择和道德风险问题的特殊性。

independent audit is essenttially a group of contract among client,bailee and federation of cpa.those factors, such as economic activity's uncertainty,asymmetric information and limited rationality have resolved that contract is almost imperfect.so adverse selection and moral hazard always exist in all the course of signing and carrying a contract,and seriously in the responsibility insurance of cpa decide

经济活动的不确定性和复杂性，信息的不完全和不对称以及签约双方的有限理性等因素决定了契约总是不完备的，几乎在所有契约的签订和履行中，都不同程度地存在逆向选择和道德风险问题；独立审计的职业特点，决定了注册会计师执业责任保险中逆向选择和道德风险问题的严重性；我国国有企业"公有产权"和"公共契约"特性，决定了我国独立审计执业责任保险中逆向选择和道德风险问题的特殊性。

Down in the square the sooty privets have turned bright green, the leaves are thickening on the chestnut trees, the daffodils are out, the wallflowers are budding, the policeman's tunic looks positively a pleasant shade of blue, the fishmonger greets his customers with a smile, and even the sparrows are quite a different colour, having felt the balminess of the air and nerved themselves to take a bath, their first since last September.

沿广场一路走来，你会看到被烟尘熏黑的女贞生长出翠绿的新叶、栗树叶片日渐肥厚、水仙花朵朵绽开、桂竹香发出嫩芽；警察身着束腰制服，那颜色蓝得讨人欢心、鱼贩面带微笑，向主顾们打着招呼；甚至麻雀也身披完全不同的色泽，沉醉于空气的芬芳，勇敢地扎进水中冲刷羽毛，要洗净一冬的尘霾。

We got no tips there either - but then you don't when you serve in a stall, which people think of as being different from a restaurant, which is, in turn, different from a banqueting hall.

在那儿我们也没有小费，但在货摊上卖东西是得不到小费的。在人们的观念里，货摊和餐厅不一样；同样地，餐厅和宴会厅也不同。

We are in a real jam.

我们的麻烦大了。

Hey, it's Ahmet from India, that foreign exchange guy.

看，那是印度的阿曼特，国际交换生