利用化学性质辨别酒精和水

2011年广东高考文数#20题:b>0,数列{an}满足a1=b,an=(nba)/(a+n-1),求an<n-1>内是下标.我的问题是：为什么由(n/a<n>) - (n-1)/a<n-1> = 1/b得出“{n/a<n>}是公差=1/b的等差数列”这个结论? Taylor Swift的MINE的歌词,不要中文翻译.谢! 用英语介绍我的房间最好汉语也写上随便写了 就像普通房间一样就好 the will three a medicine times I take day 连词成句 连成句子1.we,the,run,should,corridor,in,not,（.） 新陈代谢是什么? 新陈代谢的工作者 英语翻译Lesson9到Lesson12就行,怎么都找不到,只查到前几课的译文. 求“新陈代谢”表示什么意思 新陈代谢的谢字是什么意思 新陈代谢是_____________________________.新陈代谢的意义是:_________________________.图 回答问题 新陈代谢的意思.急 英语翻译Hall’s low- (LC) and high-context (HC) dichotomyprovides a simple two-category basis for grouping thecultures of many different countries to help understand thehidden codes in communication.In his framework,in LCcultures,most of the inf 英语翻译1.IntroductionAs the 21st century begins to unfold,globalization hasbecome more than just another piece of fancy jargon of thebusiness lexicon.In fact,globalization in the sense of firmsfrom all over the world interacting and dealing with 英语翻译This seemingly opposite result for e-mail compared withthe findings for communication frequency via fax andtelephone probably reflects the nature of e-mail as aninherently LC mode of communication.The very terseand abbreviated style typic 英语翻译Communication frequency was assessed by asking theexport managers to indicate the frequency of their communicationwith the foreign distributor over a period of 4 weeks.They provided information about how frequently they contactedthe forei 英语翻译While the above approaches are relevant to the developmentof many types of managerial strategies and tactics,this study is concerned specifically with communicationissues.An approach to national culture that was developedby the cultural a 英语翻译The case of Commerce One Inc.(CMRC),a business-to-business software company,is all too typical.The company used its rising stock value –which soared above $140 in early 2000 – to find five acquisitions that quickly catapulted its reve 白色和黑色混在一起会变成什么颜色 英语翻译Transit：A tranist passenger is one who is stopping at an airport that is not his destination.For the international tranist passenger stopping at an airport in a foreign country,there are usually special areas so thathe will not have to 英语翻译Wish the bank's involement,the exporter looks to the bank for payment instead of relying upon the ability or willingness of importer to pay,but the exporter cannot obtain payment unless he complies with all the terms in a document issuled 怎么样增加自己的新陈代谢速度? 怎么看新陈代谢的快慢?怎么知道自己新陈代谢是快还是慢?吃什么可以提高新陈代谢呢? 英语冠词（a/an）的问题_ MP3 Playera OR an? a和an是什么冠词 We are chat in english!what about?的意思 We are chat in english!what about?的意思 黑色,蓝色,白色混合在一起会变成什么颜色? 0 - 解决时间：2007-8-17 14:41某水库现存水30万立方米,有一条河,每天流入一定的水,为抗旱需要,如果每天放一定量的水浇灌庄稼,80天方干水库.但最近因为日照关系,河流入量少20%,结果60天就放干 to take this medicine every morning is very important.（改为同义句）______ _______ very important ________ _______ this medicine every morning 某镇水库的可用水量为12000立方米某镇水库的可用水量为为12000立方米,假设年降水量不变,能维持该镇16万人20年的用水量,实施城市化建设,新迁入4万人后,水库只够维持居民15年的用水量.(1)问: 某地有一座水库、修建水库的最大容水量设计为28000立方米,在山洪爆发时,每天注入水库的水量是5000立方米,此水库原有8000立方米,泄水匣每天泄水量为4000立方米.若山洪爆发的第一天就打开水 某镇水库的可用水量为12000晚立方米,假设年降水量不变,能维持该镇16万人20年的用水量,为实施城镇化建设,新迁入了4万人后,水库只能够维持居民15年的用水量.（1）年降水量为多少万立方米?