【摘 要】
：
The temperature of the suniS over 5,000 degrees Fahrenheitat the surface, but it rises toperhaps more than 16 milliondegrees at the center.The sun isso much ho
论文部分内容阅读
The temperature of the suniS over 5,000 degrees Fahrenheitat the surface, but it rises toperhaps more than 16 milliondegrees at the center.The sun isso much hotter than the earth thatmatter can exist only as a gas,except at the core,that is,thecenter.In the core of the sun,thepressures are so great against thegases that,in spite of the hightemperature,there may be a
The temperature of the suniS over 5,000 degrees Fahrenheitat the surface, but it rises toperhaps more than 16 milliondegrees at the center.The sun isso much hotter than the earth thatmatter can exist only as a gas, except at the core,that is,thecenter. In the core of the sun,the pressures are so great against the gases that, in spite of the hightemperature,there may be a
其他文献
为保证档案主题标引的准确性和一致性,提高标引工作的质量和检索效率,特制定本规则。1 范围本标准规定了档案主题分析方法和依据《中国档案主题词表》及各种专业档案主题词
档案整理工作是档案馆重要的基础工作,档案整理的质量直接影响到档案的统计、鉴定、提供利用以及现代化管理等,而影响档案整理工作水平的主要因素是整理人员的素质。因此,提
为了有效控制档案库房的温湿度、防止虫霉滋生 ,国内档案部门一般采用密闭式档案库房 ,并使用某些驱虫防霉药品 ,在缺乏有效通风的条件下 ,造成档案库房内空气清洁度差 ,有害
叶公好龙好到什么程度？龙听说他衣服上绣着龙，地板窗栏上都雕着龙，有一手画龙的绝技。据叶公小妾补充，叶公就像现在的时髦小青年一样，胸脯，胳膊，屁股上都是龙的文身。龙被感动了。它
一幼儿园里,小朋友们学唱儿歌押“我在马路边,捡到一分钱……”有一个声音听起来特别响亮,老师的目光看过来,发现了坐在角落里的庞贵。老师的眼睛里满是赞许和鼓励,庞贵乐呵
1.请问,去车站怎样走? 误:Which is the way of the station,please? 正:Which is the way to the station,please? 析:way(路)、answer(答案)、key(钥匙)等名词后表关系的
1._sueh heavy pollution already,it may now be too late to elean up the river.(NMET20ol) A .Having suffered B .Suffering C .To suffer D .Suffered2·Finding her e
所谓“档案馆突发事件”，是指“任何损害或 可能损害馆藏任何部分的所有事故”（不包括诸如虫害、霉菌感染等时常所称的“慢性灾害”）。因“突发事件”造成对档案损害的最典型
听力部分(20分)not be pleased.1.找出你所听到的单词、词组或句子。(5分)C .If you wait for your tum,others will not1 .A.PleasedB .Pieee2.A.aerossB .erossC .PleaseC
在改写后的句子空白处填上适当的单词,使之与原句意思一致,每空限填一词。1.Mr Smith is not in the office at the moment. Mr Smith is not in the office____.
Fill in