单项选择题

The author's attitude toward SATAN is______.

A．enthusiastic
B．critical
C．positive
D．indifferent
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单项选择题
SATAN, a program designed by Dan Farmer, can be used______.
A．to investigate the security of Internet sites
B．to improve the security of the Internet system
C．to prevent hackers from breaking into websites
D．to download useful programs and information
单项选择题
By saying ...owners of well over half of all World Wide Web sites have set up home with out fitting locks to their doors (Line 3-4, Para.2), the author means that______.
A．those happy times appear still to be with us
B．there simply wasn't any crime to worry about
C．many sites are not well-protected
D．hackers try out tricks on an Internet site without actually breaking in
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