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Abstract] Objective: To study the distribution and development process of Cysticercus cellulosae in organs of pigs infected with Taenia solium. Methods: Four pigs of 20~30 day-old were infected with T.

目的:探讨猪带绦虫卵实验感染中间宿主家猪后,不同时期囊尾蚴在家猪体内各个器官的分布及发育情况。

This paper is based on "Trilemma" which is induced from MF model. In order to overcome MF models inherent defects, this paper constructs a static model headed by government on choice of optimum exchange rate regime. Through the analysis of the model we can see that the choice of exchange rate regime is a dynamic process should be decided in real situation. No single exchange rate regime is right for all countries or at all time. Under certain condition intermediate regime may be the optimum one, but the possibility will decrease with the increase of international capital flow.

本文从蒙代尔——弗莱明模型精炼出的"三元悖论"出发,为了克服其内在的缺陷,构建了一个政府主导的静态最优汇率制度选择模型,模型分析表明:汇率制度选择是一个动态的相机决策过程,没有哪一种汇率制度对所有国家或某一国的所有时期都适合;在一定条件下,中间汇率制度可能是最优汇率制度,但是其可选择的区间随着资本流动程度的加大而缩小,最终最优汇率制度将内生的向两极分化。

The observation showed that sterile plants and fertile plants in the pollen mother cell stage is not very different, when microspore mother cells of male sterile plants enter meiosis period, it could form normal tetrad cell , tetrad cell is normal in early development stage, In the uninucleate microspore stage , tapetal cells were vacuolization, the microspores were extruded to the middle by tapetal cells.

本研究利用石蜡切片法,结合光学显微镜技术对樱桃萝卜核质互作雄性不育系的不育株和对应保持系可育株的花药发育过程进行细胞形态学观察,观察结果表明:不育株与可育株在花粉母细胞时期差别不大,不育株的花药小孢子母细胞进入减数分裂期后,可以正常的形成四分体,四分体前期发育正常,而在单核小孢子期绒毡层细胞出现液泡化,绒毡层细胞向中间挤压小孢子。

After research we can find that: firstly, a great number of predicate-word phrases can act as the adnex of the verb-complement structure; secondly, almost all the verbal phrases and adjectival phrases can act as complement, and other phrases like adverbs, noun, quantifier phrases, some prepositional phrases and subject-predicate phrases, even compound sentence can act as complement too;thirdiy, there are six kinds of verb-complement structures in the novel;fourthly, the verb-complement structures can act as subject, predicate, object, attribute, adverbial modifier, complement in a sentence and other phrases component, even can be a sentence by itself; fifthly, the semantic connection between complement and other components in the sentence is very abundance and complex;sixthly, some special verb-complement structures in the Dream of the Red Chamber show the characteristic of transitional language.This thesis is divided into five parts:Part 1: Preface.

通过研究我们可以发现:首先,大多数的谓词性词语在《红楼梦》中都可以充当述补结构的述语;其次,几乎所有的动词性词语和形容词性词语都可以充当补语,少数副词和名词性词语也可以做补语,数量短语、介宾短语、主谓结构和复句也可以做补语;第三,述补结构的类型按中间的助词标记可以分为没有助词的,有&得/的&的,有&个&的,有&着&的,有&将&的和有&到&的六种;第四,述补结构可以充当主语、谓语、宾语、定语、状语、补语以及各种成分内部的组成成分,还可以单独成句,其语法功能非常丰富;第五,补语的语义指向是多方面的,语义内容非常复杂;第六,几种特殊的述补结构说明了《红楼梦》的述补结构带有过渡时期的特点。

The upper layer is modern river deposit; the middle layer is relative thick,mainly consisting of icewater deposit,colluvial deposit and deluvium as well as barrier dam accumulation; the bottom layer is formed by ancient river bed deposit and boulder rocks.

河谷覆盖层是由一套不同时期、不同成因类型的沉积物相互迭置的结果,由表及里宏观上可分为3层:表层为现代河流相堆积;中间主要为以冰水、崩积、坡积、堰塞堆积与冲积混合为主的加积层,厚度相对较大;底部主要为古河床的冲积、冰水漂卵砾石层。

The expression of MYP gene in gonad showed little difference between female and male. MYP gene expression was decreased rapidly in the gonad of S. intermedius at different stages, and slowly in hybrids. The comparative quantities of MYP expression in the gonads of S.

结果表明,MYP基因在海胆雌雄个体生殖腺中转录水平上的表达差异不明显;MYP基因在中间球海胆生殖腺发育的4个时期的表达呈快速下降的趋势,而在杂交海胆呈缓慢下降的趋势。

The PULSE-TEC EQP-1A EQ section provides a wide range of equalization curves that makes it possible to boost very low or very high frequency notes of the orchestra without 'muddying the middle register of the instruments.

脉冲的过渡时期行政EQP - 1A型均衡器部分提供了广泛的均衡曲线,使得没有'有可能提高非常低或非常高的频率注意到乐团弄脏文书的中间登记。

He has endeavored to prevent the population of these states; for that purpose obstructing the laws of naturalizing of foreigners; refusing to pass others to encourage their migration hither, and raising the condition of new appropriations of lands.

他滥设新官署,委派大批官员到这里骚扰我们的人民,吞噬他们的财物。他在和平时期,未经我们立法机构同意,就在我们中间维持其常备军。

The results showed that Liquidamba formosana, Quercus acutissima, and Quercus fabri populations had the dominant positions in the forest community of Purple Mountain Area of Nanjing. During the growth process, the mortality of L. formosana, Q. acutissima, and Q. fabri were higher in low age. After entering into the middle-age stage, the upper space was occupied by oak and L. formosana population all died. The mortality of Q. acutissima and Q. fabri populations were increased with the increasing of diameter class. L. formosana population in the Purple Mountain Area of Nanjing belonged to be the typical growing population and Q. acutissima population was a decreasing population. Q. fabri population belonged to be the growing population on the whole, but the diameter class in middle parts was incomplete and the population was difficult to be renewed. Among the studied quadrate, only one dominant population showed an aggregated distribution and other dominant species showed the random distribution. Either, all the dominant species in all the quadrates presented random distribution.

结果表明,枫香种群、麻栎种群和白栎种群在南京紫金山地区森林群落中占有优势地位;枫香种群、麻栎种群和白栎种群在其生长过程中,在低龄时期,死亡率都较高,进入中龄期后,由于上层空间都被栎木占据,枫香种群全部死亡,而麻栎种群和白栎种群的死亡率则随着径级的增大而增大;南京紫金山地区枫香种群属于典型的增长型种群,麻栎种群属于衰退型种群,白栎种群总体上属于增长型群落,但中间径级不完整,种群更新较为困难;在所研究的每一个样方中,一般只有一个优势物种呈聚集分布,而其他优势物种呈随机分布,或样方中所有优势物种都呈随机分布。

The force's development is considered to havefour periods:emeygion,upsurging,mcergence andbeing active.

认为现代中国中间势力政治组织的发展大致经历产生、兴起、整合和活跃四个时期。

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In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国,慢性酒精中毒,肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题,你可以随时联系我。

Very pretty, but the airport looks more fascinating The other party wisecracked.

很漂亮,不过停机坪更迷人。那人俏皮地答道。