作为一家新型的大型专业翻译公司，随你译拥有中国首屈一指的翻译资源。通过3年的积累，已经拥有多达6万名专业注册译者，可以翻译56种语言，42个行业。大量的高素质译者保证我们可以给您提供最熟悉您行并业的专才译者队伍，通过我们卓有成效的管理体系，从而提供一个比同类公司在便捷、高质、价优、可信方面更为出色的翻译服务。
客服热线：400-711-6653

the name christmas is short for "christ\'s mass". a mass is a kind of church service. christmas is a religious festival. it is the day we celebrate as the birthday of jesus. there are special christmas services in christian churches all over the world. but many of the festivities of christmas do not have anything to do with religion. exchanging gifts and sending christmas cards are the modern ways of celebrating the christmas in the world.

　　the birth of jesus had a story: in nazareth, a city of galilee. the virgin\'s name was mary was betrothed to joseph. before they came together, she was found with child of the holy spirit. joseph her husband was minded to put her away secretly. while he thought about these things, gabriel, an angel of the lord appeared to him in a dream and told him did not be afraid to take mary as wife. and mary will bring forth a son, and he shall call his name, jesus, for he will save his people from their sins.

　　before jesus births, joseph and mary came to quirnius was governing syria. so all went to be registered, everyone to his own city. joseph also went up out of galilee, out of the city of nazareth, into judea, to the city of david, which is called bethlehem, because he was of the house and of the lineage of david, to be registered with mary, his betrothed wife, who was with child. so it was that while they were there, the days were completed for her to bedelivered. and she brought forth her firstborn son, and wrapped him in swaddling cloths, and laid him in a manger, because there was no room for them in the inn.

　　and that, christmas is the feast of the nativity of jesus, is on 25th, december every year. but nobody know the actual birthday of jesus. and the christmas has become popular when christmas cards appeared in 1846 and the concept of a jolly santa claus was first made popular in nineteenth century.

看过这个翻译公司的网友还在看: 　　单心室症状,单心室治疗,单心室图片,单心室一文 来自网络，仅供学习参考
　　
　　
　　
　　心内科职称论文代写代发表-专业发表心血管内科论文,代写内科论文,心血管内科学职称论文范文,代写代发心血管内科常见病论文,是内科医学职称论文发表首选,可加急发表.

　　

　　【概述】
　　单心室（ｓｉｎｇｌｅ　ｖｅｎｔｒｉｃｌｅ）或称总心室（ｃｏｍｍｏｎ　ｖｅｎｔｒｉｃｌｅ）或单室心（ｕｎｉｖｅｎｔｒｉｃｕｌａｒ　ｈｅａｒｔ），是一种较少见的先天性畸形。其发病率在活婴中约为１∶６５００，约占先天性心脏病的１．５％。心室接受来自三尖瓣和二尖瓣二者或共同房室瓣的血液。
　　【病因学】
　　从胚胎学基础而言，单心室的形成是由于房室管未能与发育中的心室正确对线，从而使两个房室瓣都对向一个心室。常见并发的肺动脉瓣下阻塞，则可能由于漏斗部间隔偏离所致。
　　【改变】
　　单心室本身又可分为许多亚型。Ｖａｎ　Ｐｒａａｇｈ等根据心室主体的形态学将其分为四型：Ａ型，形态学上的左室伴有包括右心室漏斗部的原始流出道部；Ｂ型，形态学上的右室而无左室窦部（左心室的残迹可呈一无功能的裂隙或袋隙）；Ｃ型，心室包括左、右室两者的主体部分，无室间隔或仅有其残迹；Ｄ型，心室不具有右心室抑或左心室的特征（无右室和左室窦部）。这四型可进一步根据其与大动脉的连接关系以及大动脉空间排列位置，将其各分为Ⅰ（正常）、Ⅱ（右袢）或Ⅲ（左袢）型。据Ｖａｎ　Ｐｒａａｇｈ报道，Ａ型占７８％，Ｂ型占５％，Ｃ型为７％，Ｄ型１０％；而大血管转位情况