The first fluorinated ionomer was discovered in the early 1960s at the DuPont Experimental Station near Wilmington, Delaware. It was a perfluorinated ionom... Sina Ebnesajjad,W Grot - 《Introduction to Fluoropolymers》 被引量: 0发表: 2021年 ...
This survey of political criticism of early modern drama, particularly Shakespeare's, covers a period of approximately twenty years, from the mid 1970s to ... RS Finlayson - Emory University. 被引量: 0发表: 1998年 Against the Current: Canadian Women Talk about Fifty Years of Life on the ...
15.The past thirty years have seen increasingly rapid advances in the field of … 16.The changes experienced by X over the past decade remain unprecedented. http://17.Inlight of recent events in X, it is becoming extremely difficult to ignore the existence of … 04.研究主题:亟待解决的问题...
In remote antiquity about 5,950 to 6,550 years ago, the site of modern Hangzhou was only an expanse of sea and the West Lake no more than a shallow bay near the Qiantang River mouth. About two thousand years ago there was only a sandbar built up by the silt carried downstream by th...
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Early impact of PCV7/PCV13 sequential introduction to the national pediatric immunization plan, on adult invasive pneumococcal disease: A nationwide survei... PCV7 was introduced as a universal childhood vaccination in Israel on July 2009 and was gradually replaced by PCV13 from November 2010. We...
The last twenty years have seen a growth in multi-disciplinary work in the area of sexuality, culture and health. What was once a set of specialist concerns has been steadily mainstreamed. Alongside this, a broader interest has developed in 'social' and 'cultural' factors relating to sexualit...
《英《英语通识阅读教程文学篇教师用书》PAGE1/38Unit1IntroductiontoLiteratureTherearealotofgreatliteraryworksthatgreatlycaptivatemyinterest,suchasJaneEyre,PrideandPrejudice,GreatExpectations,ofthed’Urbervilles,Hamlet,Dubliners,TheGreatGatsby,GonewiththeTheCalloftheandTheOldManandtheSea.Amongtheseliteraryworks,my...
Both the increasing need to deal with more heterogeneously structured data and the necessity of having an implied order are two of the most important reasons why the relational data model is being extended to store XML documents natively. In addition, the limitations of the SQL language in ...
Certificates of deposit (CDs) are lessliquid, but they typically provide higher interest rates than those in savings accounts. However, the money put into a CD is locked up for some time (months to years), and usually come with penalties for early withdrawal.2 ...