The homology of the nucleotide sequences and genetic variation analysis of NDV strains suggested that mere were obvious divergence in gene lever among NDV vaccine strains and epizootic strains isolated from different areas and different ages.The divergence may have effect on amino acid and structure and function of protein in some extent and lead to difference of immunogenicity ,which was one of reason being difficult in preventing from ND.

通過(guò)對(duì)NDV F基因核苷酸序列同源性比較及遺傳變異分析發(fā)現(xiàn)：我國(guó)不同年代a级毛片200禁在线观看、不同地區(qū)分離的NDV毒株與疫苗毒株之間在基因水平上存在較大差異中国国产精品毛片视频，這種差異對(duì)氨基酸及蛋白質(zhì)的結(jié)構(gòu)和功能可能會(huì)有一定影響国产在线真人视频免费，而NDVF蛋白的差異同時(shí)也造成免疫原性的差異a片在线观看资源，這很可能是新城疫的免疫防治十分困難的原因之一。

His poll rating and that of his Fianna Fail-led government are at record lows. Only one in five respondents is satisfied with Mr Cowen's performance; only one in ten with that of the government.

科恩及其共和黨政府的支持率達(dá)到了新低：只有五分之一的民眾對(duì)科恩的表現(xiàn)感到滿(mǎn)意色色网大全，而對(duì)政府滿(mǎn)意的只有可憐的區(qū)區(qū)十分之一精品九九九在线视频免费看。

The previous record for world's smallest fish, according to the Natural History Museum, was held by a species of Indo-Pacific goby(15) one-tenth of a millimeter毫米 longer.

自然歷史博物館說(shuō)之前世界上最小的魚(yú)是印度太平洋蝦虎魚(yú)的一種，體長(zhǎng)十分之一毫米992人人tv。研究人員說(shuō)這種小魚(yú)生活在黑暗aigao激情在线视频、茶色的水中，水的酸性比雨水強(qiáng)至少100倍аⅴ亚洲日韩中文高清无码。

It is only by assuming an infinitely small magnitude, and a progression rising from it up to a tenth, and taking the sum of that geometrical progression, that we can arrive at the solution of the problem.

只有假設(shè)出無(wú)窮小數(shù)和由無(wú)窮小數(shù)產(chǎn)生的十分之一以下的級(jí)數(shù)99拍一黄色视频,老师，再求出這一幾何級(jí)數(shù)的總量，我們才能得出問(wèn)題的答案国产小视频网站。

The book of Job a none Jew but of Ishmaelite/Arab origin was written by Moses during his pre-islamic study with Jethro - and about Melchedezek Arab Priest to whom Abraham paid his tithe to.

這本書(shū)的工作人人人人插人人干人人操，但一沒(méi)有猶太人的Ishmaelite /阿拉伯裔的作者是摩西在他的前伊斯蘭研究Jethro -約Melchedezek阿拉伯神父人亞伯拉罕支付他的十分之一to中日韩人人操人人干。

The standard of international investment treatment can generally be classified as standard of fair and just treatment, standard of national and MFN treatment.

可以預(yù)料，服務(wù)業(yè)投資自由化是國(guó)際投資自由化的重要發(fā)展方向之一91视频专区，服務(wù)業(yè)投資待遇標(biāo)準(zhǔn)占據(jù)十分重要的地位性感xxxxx，本文對(duì)其關(guān)于待遇的核心規(guī)則和具體承諾的國(guó)民待遇問(wèn)題進(jìn)行了討論。

KTP crystal has a lots of outstanding properties of electro-optics, piezoelectricity, pyroelectricity and optical nonlinearity, especially it's coercive field is only a tenth of LiNbO3, so it has been used widely in the region of Quasi-Phase-Matched technology.

KTP晶體具有良好的電光久综合久久、壓電久久中文字幕乱码久久午、熱電和非線(xiàn)性光學(xué)特性，尤其它的矯頑場(chǎng)電壓是鈮酸鋰晶體的十分之一亚洲黄色第一页，因此在準(zhǔn)相位匹配技術(shù)領(lǐng)域得到廣泛的應(yīng)用黄片少妇。

All the global problems of population, resource andenvironmental issue are closely related to rareness of the land resource, and theyconcentrate to embody the pressure of population growth on the land resource.

土地是十分寶貴的資源按摩深夜A级毛片视频免费，是人類(lèi)賴(lài)以生存和發(fā)展的物質(zhì)基礎(chǔ)之一亚洲九九av，全球性的人口、資源和環(huán)境問(wèn)題黄色丝袜a片，都與土地資源的稀缺性密切相關(guān)色色色色精品视频，并集中表現(xiàn)在人口增長(zhǎng)對(duì)土地資源的壓力上。

The water renewability is a breaking developing in the water resources sustainable utilizing study, and also is one of the preceding studies that are attended by the hydrology academic circles. This study has very important theoretic and realistic meaning.

水資源可再生性是對(duì)水資源可持續(xù)利用的一種突破性的認(rèn)識(shí)和發(fā)展国产3p一区二区三区视频在线，也是當(dāng)今水文水資源界關(guān)注的科學(xué)前沿問(wèn)題之一久久久国产AV一区二区，具有十分重要的理論與現(xiàn)實(shí)意義。

From the publication of the first braid-based PKCscheme due to Ko et al. in 2000, the research on braid-based PKC has been undergoingsome sinuation and keeping active.

自從Ko等人于2000年提出基于辮群的公鑰密碼系統(tǒng)以來(lái)免费一级A毛片在线播放一级，基于辮群的公鑰密碼系統(tǒng)的發(fā)展雖然經(jīng)歷了不少曲折特级美女一级黄色一丝不挂A片，但目前仍然是公鑰密碼學(xué)研究領(lǐng)域中十分活躍的主題之一。