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. Whats more, computer experts agree thatdespite 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 Councils 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 inelectronic 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. assessI. aimed J. single K. committee L. generatesM. relevant N. question O. community II. B 12. J 13. A 14. H 15. C 16. I 17. M 18. E 19. D 20. K
2015届高考英语一轮复习限时训练:作业21(含答案)
2015高考英语一轮精讲教案:必修7 (4)
2015高考英语一轮精讲教案:必修8 (3)
2015届高考英语一轮复习限时训练:作业28(含答案)
2015届高考英语一轮复习限时训练:作业7(含答案)
2015高考英语一轮精讲教案:必修7 (7)
2015届高考英语一轮复习限时训练:作业26(含答案)
2015届高考英语一轮复习限时训练:作业15(含答案)
2015届高考一轮复习英语同步练习:短文改错练习(1)
2015届高考英语一轮复习限时训练:作业12(含答案)
2015高考英语一轮精讲教案:必修7 (6)
2015高考英语一轮精讲教案:必修8 (9)
2015届高考英语一轮复习限时训练:作业25(含答案)
2015届高考一轮复习英语同步练习:完形填空(夹叙夹议)练习(3)
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2015届高考英语一轮复习限时训练:作业13(含答案)
2015届高考英语一轮复习限时训练:作业17(含答案)
2015届高考英语一轮复习限时训练:作业6(含答案)
2015高考英语一轮精讲教案:必修8 (10)
2015届高考一轮复习英语同步练习:完形填空(说明文)练习(1)
2015高考英语一轮精讲教案:必修8 (6)
2015高考英语一轮精讲教案:必修8 (7)
2015届高考英语一轮复习限时训练:作业23(含答案)
2015高考英语一轮精讲教案:必修8 (2)
2015届高考英语一轮复习限时训练:作业29(含答案)
2015届高考英语一轮复习限时训练:作业8(含答案)
2015届高考英语一轮复习限时训练:作业24(含答案)
2015高考英语一轮精讲教案:必修7 (8)
2015届高考一轮复习英语同步练习:完形填空(议论文)练习(2)
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