【单选题】互联网真正让世界变成了地球村,让国际社会联系越来越紧密。同时,互联网发展对( )提出了新的挑战,迫切需要国际社会认真应对、以谋共治、实现共赢。
【单选题】business models have taken on greater importance recently as a form. of intellectural property that can be protected with a ()
【单选题】Business models have taken on greater importance recently as a form of ( )that can be protected with a patent
【单选题】Y-△降压启动时,电动机定子绕组中的启动电流可以下降到正常运行时电流的()。
【判断题】需要保护的电子信息系统必须采取等电位连接与接地保护措施。