选择性的

In 20℃ and 40℃, the selectivity of Cd~(2+) to analcime is less than that of Na~+ to analcime; in 60~(2+) and 80℃,the selectivity of Cd~(2+) to analcime is more than that of Na~+ to analcime.

在20℃和40℃时，方沸石对Cd~(2+)的选择性小于对Na~+的选择性，在60℃和80℃时，方沸石对Cd~(2+)的选择性大于对Na~+的选择性。

Selective doping has been proved to be a semiconductor oxide improve the photocatalytic activity of the most effective ways The introduction of certain metal ions can greatly improve the photocatalytic oxidation efficiency, Recently, a lot on the adoption of the doping to improve the photocatalytic oxidation performance reports, doped semiconductor photocatalysis material because of its physical and optical properties change, thereby improving the photocatalytic properties.

有选择性的进行掺杂已被证明是一种提高半导体氧化物光催化活性的极其有效的方法，掺入一定的金属阳离子能极大的提高TiO2的光催化效率，最近有大量的关于通过掺杂来提高TiO2的光催化性能的报道，掺杂的半导体光催化材料由于其物理和光学性质的改变，通过扩展光响应范围和提高光生电荷的分，从而提高了光催化性能。

The 4th: Of exterior link guide, a lot of stationmaster can feel more to had been jumped over here, actually otherwise, but the catenary outside doing not have is no good for certain, at this o'clock I admit, so I had the site with the alternative forum in a few my friends that be close friends and Baidu tall weight to be added to this site guide link, the daily record is analysed before, the spider crawls rarely, the catenary outside the course is brought, the result has greatly change, basic be can crawl everyday, seize this opportunity, update the content that achieves a gender formerly for the website every day, actually to be being achieved formerly, a lot of people have different view, what the specification wants here is, I those articles also are not achieve completely formerly, also be everywhere estreat, throw into confusion ordinal, change caption stopped, because you want to know, search indexes propping up is a machine after all still is not a person, optimize the site for the key to website of this kind of Beijing especially, more such, because not have,essential nobody looks before the rank, so the article also does not have any relations in disorder again, here my spec just, the top that has felt.

第四： 外部链接的导入，这里很多站长会觉得越多越好，其实不然，但是没有外链肯定是不行的，这点我承认，所以我对该站点有选择性的在我几个要好的朋友的论坛及百度权重高的站点加上了导入链接，之前分析日志，蜘蛛很少爬行，经过外链一引，结果大有改观，基本是天天都会来爬行，抓住这个机会，天天为网站更新原创性的内容，其实对于原创，很多人有不同的见解，我这里要说明的是，我那些文章也并非完全原创，也是到处摘抄，打乱顺序，改变标题罢了，因为你要知道，搜索引擎究竟是机器还不是人，尤其是对于这种北京网站优化要害来说的站点，更是这样，因为无排名之前根本没人看，所以文章再乱也没任何关系，这里只我投机而已，觉得好的顶。

Although the intact-receptor based biosensors of the maxillary palp of cockroach Periplaneta Americana are not yet practical analytical devices at present. Yet, sensitive and selective responses to biomolecules involving amino acids and protein, as well as some simple substance such as salts and sugars have been firstly obtained. It is already evident that receptor based biosensors are enormously superior to isolated receptor biosensors in terms of response time and recovery times, thus, the intact receptor biosensor worth of further investigation and development.

总而言之，本论文首次从电生理信号上对美洲蜚蠊下颚须的化学响应进行研究，初步探讨了基于美洲蜚蠊下颚须的整合受体生物传感器的特性；发现了美洲蜚蠊下颚须能够整合其密集的感觉毛阵列对化学刺激的响应；得到了蜚蠊对氨基酸和蛋白质等生物分子以及简单物质如盐和糖等的敏感而具有选择性的响应信号，并发现了糖和蛋白质的特殊响应信号；表明了美洲蜚蠊下颚须是一种新型整合受体生物传感器的敏感材料，进一步深入地研究信号波形及其整合原理、探寻糖和蛋白质的特殊受体细胞等，对这一类型整合受体传感器的研究发展是很有意义的。

This paper pointed out that the complex sentence of selective default and its closely related,"would rather" sentence, and "even if" the sentence is similar to selective, concessions are in the lower body show the premise of selective, and selective concessions are inseparable ; However, the two sentences in selective areas there are also many different and specific expression: the different levels of concessions, the focus of different default, choose different context, the choice of the situation is different and selectivity Weak, such as different levels of five.

本文指出，复句的选择性与其预设密切相关，"宁可"句和"即使"句的选择性具有相同之处，都是在让步的前提下体现出选择性，让步性与选择性是密不可分的；但是，两个句式在选择性方面也存在很多不同之处，具体体现为：让步的程度不同、预设的重点不同、选择语境有所不同、选择项的情况不同以及选择性强弱程度不同等五个方面。关键词：让步复句；预设；选择性

The chapter two was focused on the samarium diiodide promoted organic reactions and their applications in organic synthesis, firstly, a new synthesis of highly substituted cyclopentadienes from a,β-alkynone promoted by samarium diiodide was investigated and the highly substituted cyclopentadienes were prepared in moderate to good yields under mild conditions. Secondly, the Michael addition and Michael-aldol tandem reaction of diorganyl diselenides or diorganyl disulfides with α,β-alkynones mediated by samarium diiodide were studied and a series of alkenylsulfides and alkenylselenides were prepared in good yields. Then the highly regioselecfive nucleophilic addition of the allylsamarium bromide to α,β-alkynones were explored. We found that the allylsamarium bromide reacts with α,β-alkynones to afford regiospecificly 1. 2-nucleophilic addition products in good yields under mild condition. At last we studied the coupling reaction of aryl halides promoted by NiCl〓/PPh〓/Sm〓.

第二章 研究了二碘化钐、金属钐促进的有机反应：1、二碘化钐促进下α，β-炔基酮的偶联环化反应，提供了一种制备多取代环戊二烯的新方法；2、二碘化钐促进下的二硫醚、二硒醚与α，β-炔基酮的Michael加成反应，为高产率地制备多取代的烯基硫或烯基硒化合物提供了方便可靠的新方法；3、二碘化钐促进下的二硫醚、二硒醚与α，β-炔基酮和醛、酮的Michael—aldol串联反应，提供了一种一锅法高产率地制备多取代的含硫的烯丙基醇或含硒的烯丙基醇类化合物的方便可靠的原子经济性的新方法；4、烯丙基溴化钐与α，β-炔基酮的高度区域选择性的1，2-亲核加成反应；5、NiCl〓/PPh〓/Sm〓促进的卤代芳烃的偶联反应-一种从各种卤代芳烃制备联苯类化合物的有效方法。

The results show that the maximum growth quantity of Nocardia can be achieved after culturing 120 h and obvious selective adsorption of Nocardia on the surface of pyrite and sphalerite can be detected. The maximum adsorption rate on the surface of pyrite is 96.99%, whereas it is less than 20% in the case of sphalerite. Adsorption equilibrium can be attained within 20 min on the surfaces of the two minerals. pH value is the key factor influencing upon selective adsorption, and the difference of adsorption quantity on the surfaces of two minerals is apparent when pH is between 4 and 10. Slurry concentration over 6 g/L is favorable to selective adsorption. Nocardia cell concentration, stirring speed and temperature have no obviously effect on selective adsorption.

结果表明：培养120 h后诺卡氏菌达到最大生长量；诺卡氏菌在黄铁矿和闪锌矿表面发生明显的选择性吸附，在黄铁矿表面的最大吸附率可达到96.99％，而在闪锌矿表面的吸附率大都在20％以下；诺卡氏菌在两种矿物表面于20 min内即可达到吸附平衡； pH值是影响诺卡氏菌在两种矿物表面发生选择性吸附的关键因素， pH在4～10之间时，选择性吸附现象明显；矿浆浓度超过6 g/L时有利于发生选择性吸附；细胞悬浊液浓度、搅拌速度和温度对吸附效果影响不大，均可产生选择性吸附。

Very high fence finally failed big hole, block up ascended a few pieces can with the wood of activity, admire especially have a door, he can freely pass in and out, think into of the time enter, figuring out of time, the animals again see him, he grows up, he still have enthusiasm, and also have proper restraint, he knows not infringe upon the territory of another animal, he discovers originally each time grow animals all have an own door, he smiles oneself how so silly before, the animals slowly acquaint with him, Be not monster any more, is they win of a member, they sometimes ask him go to them of the territory does a guest, is being like him also optionally invite them.everyones need have an own safe feeling, but also all need to be communicated, door is the wall that can compromise, you guess perhaps and early I of meaning, admire especially also call ＂ Heart

高高的围墙终于砸了个大洞，堵上了几块可以活动的木头，哈特有门了，他可以自由进出，想进的时候进，想出的时候出，动物们又见到了他，他长大了，他依旧有着热情，而同时也有了分寸，他懂得不去侵犯别的动物的领地，他发现原来每种动物都有自己的门，他笑自己以前怎么那么傻，动物们慢慢的熟悉他了，不再是怪物，是它们中的一份子，它们有时请他去它们的领地做客，正像他也选择性的招待它们。大家都需要有自己的安全感，但也都需要交流，门是可以妥协的墙，你也许早猜到我的意思，哈特也叫＂Heart

Under the same condition as methane partial oxidation, the reaction results are as follows: CH4 conversions is 88%, CO selectivity is 90%, H2 selectivity is 68%, CO2 selectivity is 12%.H2-TPD indicates that it is difficult for H2 to desorb from catalyst. It is estimated that the reaction between hydrogen and oxygen being absorbed is the primary approach to produce H2O, and it maybe lead to the lower H2 selectivity.

反应结果如下：CH4转化率88%；CO选择性90%；H2选择性68%，CO2选择性12%。H2-TPD实验表明，H2在催化剂表面难于脱附，表面氢与表面氧反应可能是生成H2O的主要途径，这也可能是H2选择性比较低的原因。

In this paper, a specially made root chamber system with two compartments and nine gas collection pipes was used to collect the N2O in soil air of nine different spatial position in the root chamber. The following treatments were also used:(1) Two selective nitrification inhibitors, C2H2 and DCD in low concentration were used to study the nitrification process under different NH4+-N levels and its contribution to N2O release.

用特制的带有9根采气管的两室根箱系统，采集和分析根箱中9个不同部位土壤空气中N2O的浓度，结合使用具有选择性的硝化抑制剂（包括低浓度的C2H2和DCD），研究在不同铵态氮水平下的硝化过程及其对N2O气体释放的贡献；结合使用高浓度的C2H2，抑制反硝化过程中N2O到N2的还原，研究在不同铵态氮水平下的反硝化过程及其对N2O气体释放的贡献。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。