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Under the considerations of trading costs and efficiency, more and more investors choose the way of online stock trading which is fast, convenient, and has preferential fee. The cost of establishing a new customer is five times more than maintaining an old one. As a result, to explore the investors choose continuous usage behavior of online security trading system as reference for security industry...
Comparing with the common operating system, the secure operating system can provide the user with a more safe and reliable operating platform of the computer system. The testing to the security functions of the secure operating system has become the important measure to verify its security. On the basis of the standard on the evaluation of the security of the information technology made by China (GB/T18336-2001),...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.