By saying "too many corpurations...speed and accessibility" (Lines 3~4, Para. 3 ), the author means ______.
A.too many corporations take no notice of the security problem of computers
B.criminals are sacrificing security for speed and accessibility
C.it's very easy to sacrifice security for speed and accessibility
D.many companies suffer from computer hacking because they value speed and accessibility more than security
第7题
A.制造、生产和运作
B.财务、营销和生产与运作
C.生产与运作、人事和营销
D.研发、营销和财务
E.制造、生产和服务
F.财务、营销和服务
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