The development and appli- cation of modern computer information and network technology is a double- edged sword. On the one hand, thanks to the rapid and convenient spread and exchange of computer- ized information a...The development and appli- cation of modern computer information and network technology is a double- edged sword. On the one hand, thanks to the rapid and convenient spread and exchange of computer- ized information and the compressed time and space on the Internet, computerized information plays a positive role in many areas like the economy, culture, education, sci- ence and technology, and politics. On the other hand, it also leads to various online rights infringements： citizens＇ individual information is revealed online; personal comput- ers are hacked; and online shopping lists are copied. Many Internet users worry about these problems to some extent. Especially in recent years, as information technology has devel- oped rapidly, people＇s online privacy rights have faced unprecedented challenges. How to strengthen pro- tection of online individual privacy has become an important challenge to the healthy development of informa- tion networks.展开更多
With the rapid development of silicon chip tech-nology,web-based instruction(WBI)and computer-ized adaptive testing(CAT)will be the new trends inthe field of language teaching and testing.We assumethat only when teach...With the rapid development of silicon chip tech-nology,web-based instruction(WBI)and computer-ized adaptive testing(CAT)will be the new trends inthe field of language teaching and testing.We assumethat only when teaching and testing share the sameview about the nature of language and language learn-ing can testing exercise a beneficial backwash effect onteaching.However,WBI and CAT prove to be basedon opposite theories of language and language learn-ing.While WBI believes in constructivism,CAT cor-responds to structuralism and behaviorism.This situ-ation places language testers in a dilemma,for if theyfollow the trend,testing will go against teaching.Butif they give up CAT,it is very difficult to substituteanother testing system possessing so many advantages.This paper illustrates in detail why WBI and CAT areto become the new trends in teaching and testing,ex-plains clearly the discrepancy between WBI and CAT intheory and their objectives and finally attempts toprovide a solution to help the language testers out ofthe dilemma.展开更多
The developing mobile technologies have resulted in operators focusing on how to optimize their 2G networks and ensure a smooth network end, there are two approaches for upgrade: one core network with a 2G-radio netwo...The developing mobile technologies have resulted in operators focusing on how to optimize their 2G networks and ensure a smooth network end, there are two approaches for upgrade: one core network with a 2G-radio network, while the other is (Mobile Switching Center) with WCDMA MSCS (Mobile Gateway) to optimize the Core network hierararchy展开更多
文摘The development and appli- cation of modern computer information and network technology is a double- edged sword. On the one hand, thanks to the rapid and convenient spread and exchange of computer- ized information and the compressed time and space on the Internet, computerized information plays a positive role in many areas like the economy, culture, education, sci- ence and technology, and politics. On the other hand, it also leads to various online rights infringements： citizens＇ individual information is revealed online; personal comput- ers are hacked; and online shopping lists are copied. Many Internet users worry about these problems to some extent. Especially in recent years, as information technology has devel- oped rapidly, people＇s online privacy rights have faced unprecedented challenges. How to strengthen pro- tection of online individual privacy has become an important challenge to the healthy development of informa- tion networks.
文摘With the rapid development of silicon chip tech-nology,web-based instruction(WBI)and computer-ized adaptive testing(CAT)will be the new trends inthe field of language teaching and testing.We assumethat only when teaching and testing share the sameview about the nature of language and language learn-ing can testing exercise a beneficial backwash effect onteaching.However,WBI and CAT prove to be basedon opposite theories of language and language learn-ing.While WBI believes in constructivism,CAT cor-responds to structuralism and behaviorism.This situ-ation places language testers in a dilemma,for if theyfollow the trend,testing will go against teaching.Butif they give up CAT,it is very difficult to substituteanother testing system possessing so many advantages.This paper illustrates in detail why WBI and CAT areto become the new trends in teaching and testing,ex-plains clearly the discrepancy between WBI and CAT intheory and their objectives and finally attempts toprovide a solution to help the language testers out ofthe dilemma.
文摘The developing mobile technologies have resulted in operators focusing on how to optimize their 2G networks and ensure a smooth network end, there are two approaches for upgrade: one core network with a 2G-radio network, while the other is (Mobile Switching Center) with WCDMA MSCS (Mobile Gateway) to optimize the Core network hierararchy
