答案：Carnival crowds with changing groups and noisy jubilation.
PASSAGE TWO
27. What do the cases of Target, Adobe and eBay in Para. 3 show?
答案：The severe risks of commercial incursions in cyberspace.
28. Why does the author say that the task is becoming harder in Para. 7?
答案：Because the multiple threats to cyber-security are growing.
29. What is the conclusion of the whole passage?
答案：As hacking grows, cyber-security is facing new threats.
PASSAGE THREE
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