单项选择题


A．good
B．bad
C．worse
D．worst
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单项选择题
A．becauseB．unlessC．in caseD．despite
A．because
B．unless
C．in case
D．despite
单项选择题
The last sentence of the third paragraph tells us that ______.
A．any organization's networks may be at risk of security breaches
B．current technology cannot safeguard against unauthorized access to online network
C．information security should be a pressing concern for Internet commerce
D．organizations must secure their networks and data against unauthorized use
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