The birth of computers has brought with it a new set of opportunities for mischief and crime. Today, computers are easy to come by and many people know how computer technology  11 . More importantly, the growing use of computer networks can multiply the violation of security, making large numbers of people more vulnerable than would be the case if they were using  12 , stand-alone computers.
　　What's more, computer experts agree that—despite recent widespread publicity-computer viruses are  13 one of the many computer security problems facing the nation.
　　The U. S. Defense Advanced Research Project Agency has requested that the Research Council's Science and Technology Board   14  the security problems posed by computer technology, see what    15  may already exist, review research efforts   16  at avoiding security problems in the future, and evaluate existing policies   17  to computer security. The study committee will examine the   18  of security for a broad spectrum of users, including the business, national security, and academic communities, as well as the  19  public.
　　David. Clark, senior research scientist, Laboratory for Computer Science, Massachusetts Institute of Technology, will chair the  20 of experts in electronic security, net-work security, computer law, software engineering ? and operating systems. The committee will also include computer users from the defense and banking industries.

　　A. only B. works C. solutions D. general
　　E. issue F. fundamentally G. universal H. assess
　　I. aimed J. single K. committee L. generates
　　M. relevant N. question O. community

　　参考答案：
　　II. B 12. J 13. A 14. H 15. C 16. I 17. M 18. E 19. D 20. K