题目选项分析

Warning that computers in the United States are not secure, the NationalAcademy of Sciences has urged the nation to revamp computer security procedures, institute new emergency response teams, creating a special nongovernment organization to take charge of computer security planning.

Warning that computers in the United States are not secure, the NationalAcademy of Sciences has urged the nation to revamp computer security procedures, institute new emergency response teams, and create a special nongovernment organization to take charge of computer security planning.