Unit Twenty-Eight
　　Passage 2
　　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

買知識，賣知識，就上233考試大！還可以免費賺取現(xiàn)金哦！
·您手頭有好東西嗎？上傳上來和大家一起分享吧！你也可以求購你自己想要的資料。 　　·上傳您的精品資料，可獲得收入，既可在網(wǎng)站上進行消費，也可提取現(xiàn)金。 　　·若被評為資料，還可以增加任務(wù)分值。了解更多>>

　　編輯推薦：
　　2012年12月大學(xué)英語四級報名時間
　　2012年12月英語四級考試時間及流程