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The phylogenetic analysis based on the sequences in this region indicated that the y-type HMW glutenin subunits of Agropyron elongatum species were different from other subunits, whereas the x-type subunits of them were most closely related to that from the B genome.

推测四倍体长穗偃麦草中的E1基因组可能起源于二倍体的E基因组。与来自小麦的A、B、D和G基因组部分亚基基因的启动子序列比较表明,小麦的这一区域在进化上是相当保守的,不同基因组来源的序列同源性都在90%以上。

Because of sharing characteristics with both Galliform groups, Tragopans are classified as partridges by some authors and pheasants by some others. In this study we set out to sequence the cytochrome b-gene of 19 species pheasants. and took the sequence for those 22 species from GenBank. We amplified 828 base pairs using the PCR technique. Primers designed by ourselves were based upon Galliform sequence data. Neighbor-joining method and Minimum evolution method were used to analyse cytochrome b sequences with Anhima cornuta and Kachuga dhongoka as outgroups.

通过PCR扩增鸡形目Galliformes黄腹角雉Tragopan caboti等10个属19个个体的线粒体DNA细胞色素b的部分基因,获取片段长度为828bP,以及从GenBank获取22种样本的相应序列,以角叫鸭Anhima cornuta和海龟Kachuga dhongoka为外群,分别用邻接法(Neighbor-joining, NJ)和最小进化法(Minimum-evolution, ME),对鸡形目和将雉科的15个属分为5个属及雉和鹑构建分子系统树,NJ和ME系统树中,都是角雉与雉类相聚。

Reaction (1) was examined with different kinds of acetal substrate(1) and vinyl ethyl ether, and the results indicated that the 1, 1,3-triethoxy compounds could be obtained in high yields of 88 and 97% respectively when the R groups of the acetal are phenyl and anisyl, while the yields amounted only to 55-75 % for R=a...

有证据表明这种催化反应也可能是通过正碳离子中间体进行的。本反应的产物1,1,3-三乙氧基化合物经乙酸/乙酸钠溶液水解可得反式α,β-不饱和醛。水解产率:芳香产物大于90%,脂肪产物大于75%。

Venezuela Indians Arawa for the family and the Caribbean Family residence.

委内瑞拉原为印第安人阿拉瓦和加勒比的居住地。

Brenga Astur also gives concerts for schools and cultural associations around Spain and, by playing music from the Celtic countries, teaches about the ancient culture of the Celts and how they influenced our history.

Brenga Astur也会在校园里和西班牙周边的文化协会中举办音乐会,他们会演奏来自凯尔特国家的音乐,并给听众讲授关于凯尔特的古文化,以及凯尔特如何影响我们的历史。

They have narrower head breadth, face breadth and bigonial breadth but wider mouth breadth than Han nationality. Lahu nationality belongs to y...

其头面部 10项均值聚类分析和 8项主要均值比较结果表明,拉祜与阿昌和傈僳最接近,与基诺最远。

In the past week the Gorkhas, ethnic Nepalis living in West Bengal, have said they will organise strikes to promote their demand for a Gorkhaland, while the Bodo tribe has issued new demands for a Bodoland, separated from the state of Assam.

过去一周内,西孟加拉邦尼泊尔的廓尔喀人表示,他们将组织示威,推动建立廓尔喀邦的诉求。与此同时,博多再次要求,从阿萨姆邦分离出去,建立博多邦。

The effect of zeolites ion-exchanged by transition metals on thermal catalytic cracking reaction is studied. The product distributions of the cracking reactions catalyzed by theβor ZSM-5 zeolites exchanged with transition metals are different from that catalyzed by corresponding Hzeolites, which means the mechanism of cracking reactions has varied. Group Ⅷ metals Fe, Co, Ni and Cu, Zn are shown to be of strong catalytic activity of oxidative dehydrogenation, while Ti and Cr are not of oxidative activity. Catalyzed by zeolites or catalyst containing Ag, conversion of thermal catalytic cracking reactions and the yield of ethylene increase while the yield of propylene does not decrease. Silver can not only promote the formation of carbonium ion, but also convert carbonium ion into free-radical via redox reaction. The weak adsorption of olefins on silver reduces the occurrence of hydrogen transfer and dehydrogenation. As a result, the yield of light olefins is favored by silver in the catalyst.

采用过渡金属交换的分子筛作为催化剂,进行催化热裂解制取乙烯的反应,研究发现,在β沸石分子筛和ZSM-5分子筛中引入过渡金属后,催化热裂解反应的产物分布与相应的氢型分子筛相比有了较大的变化,说明过渡金属的加入对于催化热裂解反应的机理具有影响,Ⅷ金属如Fe、Co、Ni和第Ⅰ、Ⅱ副Cu、Zn表现出较强的氧化脱氢活性,产物中氢气、焦炭的产率很高,Ti、Cr则未表现出氧化作用:分子筛及催化剂中引入银后,催化热裂解反应的转化率和乙烯的产率有了提高,丙烯产率没有很大的变化,说明银在催化热裂解反应中能够促进正碳离子的生成,又有可能通过氧化-还原作用部分改变反应机理,促进了自由基的生成,并且由于银对烯烃的吸附很弱,其氢转移反应和脱氢、加氢活性比较低,有利于烯烃产率的提高。

"We all pray the violence will stop," said Hasan Cetin, 60, who like hundreds of Kurds here fled his village to escape the pressures of a decades-old conflict between the outlawed Kurdistan Workers Party and the army.

我们都期望暴力有停止的一天。」60岁的瑟汀这麼说,正如上百位库德同胞的命运,他也在库德工人党及土耳其军方间10来年的战火下被迫远离家园。

A:Thors and colossi can be transported by each race's transportation units: the medivac and the warp prism.

问:神巨像和人雷神都可以被运输的吗?答:是的,它们可以被各自种的运输单位运输。

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推荐网络例句

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。

This is not paper type of business,it's people business,with such huge money involved.

这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。