摘要：Objective: The purpose of this study was to assess the risk of neonatal death and morbidity in vertex- nonvertex second twins according to the mode of delivery and birth weight. Study design: Data from a retrospective cohort study that was based on all twin births in the United States (1995- 1997) were used. Results: A total of 15,185 vertex- nonvertex second twins were classified into 3 groups: (1) both twins were delivered by cesarean delivery (37.7% ), (2) both twins were delivered vaginally (46.8% ), and (3) the second twin was delivered by cesarean delivery after vaginal delivery of the first twin (15.5% ). The risk of asphyxia- related neonatal deaths and morbidity was increased in the group in which both twins were delivered vaginally and the group in which both twins were delivered by cesarean delivery. The increase in neonatal death in the group in which both twins were delivered vaginally was stronger in the birth weight of < 1500 g. In contrast, in the group in which both twins were delivered vaginally and the group in which the second twin was delivered by cesarean delivery after the first twin was delivered vaginally, the increase in neonatal morbidity was greater in the group in which the birth weight was 1500 to 4000 g. Conclusion: The risk of neonatal death and morbidity in second- born twins is higher in the group in which both twins were delivered vaginally and the group in which the second twin was delivered by cesarean delivery after the first twin was delivered vaginally compared with the group in which both twins were delivered by cesarean delivery.

摘要：教学内容:五年制小学课本数学第三册第100页例1。 教学目标:1.使学生认识两步计算应用题;了解两步计算应用题的结构。2.初步掌握找中间问题的方法。3.初步学会解答两步计算的应用题,提高学生分析问题、解决问题的能力。 教学过程: 一.复习 出示练习题:一辆公共汽车里有乘客36人,到胜利街车站下去18人,________?(先让学生演示数量间的关系,然后提出问题,并写出数量关系式、列式计算。) 师:这道应用题同学们只要直接将题中两个已知条件经过一步计算就解决了,这样的应用题叫做一步计算的应用题。这节课同学们开始学习两步计算的应用题(出示课题)。

摘要：[作业分析] 课文共四个练习题,其中第二、三两题是紧扣本组训练的重点“抓住要点,考虑周到”设计的,为学生理解课文的重点段——琥珀形成的过程,以及学习记叙事情的一般方法作了提示。前者重在让学生从阅读中归纳要点,得到对课文重点段的整体性认识,后者重在将阅读引向写作。

摘要：记忆中第一首喜欢的歌曲是美国歌手 Patti Page 的"How much is that doggiein the window"(那只窗前的小狗多少钱?),很可爱的歌词,歌曲里还有小狗的吠声,很逗小孩喜欢。那时候还没有上学,老嚷着要爸爸播放他的黑胶唱片给自己听,听完一遍又一遍。小学的时候妈妈带我去看电影"Sound of Music"(音乐之声),马上被迷住了,兴奋了一个星期。回家后不断胡乱地哼着音符,差点把我爸烦死了。原来唱歌是这么High 的!中学三年级,第一次在学校参加歌唱比赛,在台上唱林子祥的《我要走天涯》,恐惧得一直闭上眼睛唱,拍子和心跳一样一塌糊涂。输了,连决赛也没进。

摘要：旅美著名画家丁绍光先生1962年毕业于中央工艺美术学院装潢系。毕业后的30年里,他在艺术创作和理论研究方面取得了突出成就,为当今国际艺术界所瞩目。根据他在艺术创作和学术上的特殊贡献,中央工艺美术学院特破例在校友中第一个授予他为该院客座教授。

摘要：记得十二年前,我在北京考上了一类本科,成为了家族中第一个大学生,被所有人寄予希望,肩负起改变家庭命运的重担。那时候,在我眼中,考上重点本科是一件极其平常的事情,只要通过努力都可以做到,都可以成为所谓的"天之骄子"。而如今,天之骄子头衔的获取越来越简单,竟然有广告说"1980元圆梦名校本科"。

摘要：地方国营煤矿新建矿井劳动定员计算表是为简化初步设计中计算劳动定员的繁琐工作,通过查表直接获得各种不同井型的劳动定员,对提高设计单位的工作效率和计算的准确性、特别是设计审查部门审查设计的合理性、正确控制以土建工程建筑面积及其它费用的计算取值等,有其一定的实用性.本计算表是根据原煤炭部1985年颁发的《地方国营煤矿设计若干规定》中第128条规定的原则,按以下公式计算得出:

摘要：和高鸿的上一篇中篇小说《父亲的爱情》是节选自他的长篇小说《农民父亲》一样,他的这篇中篇小说《女社员宋桂花》（载《延安文学》2014年第三期）,仍然节选自他的这部厚重的长篇小说《农民父亲》,并且在情节上是保持连贯的。父亲生命中第一个女人大翠,在我们一家逃难之初就逝去了,而第二个女人,就是这个“女社员宋桂花”。我们一家老小逃难途经一个叫大刘庄的村子,遇到这个女人宋桂花。她是个年龄正三十岁的寡妇,她曾是“村里最漂亮的女人”,

摘要：2015年艺考,在政策新规出台的背景下,各省基于自身条件积极做出调整,使艺考之路进入"最难艺考时代"。2015年,也被艺考界称为史上"最难艺考年"。策划者说:又是一年艺考时。成千上万的艺考生涌向较往年更为狭窄的艺考"独木桥"。2015年艺考变化主要集中在继续扩大统考范围、文化课所占比重加大、