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题目内容
（国家开放大学-理工英语2）
The threat of cyber attack was so serious that ______________.
选择一项：
A.
it has spread into nearly every corner
B.
no security failure was reported by any company
C.
cyber security has got no attention yet
选择一项：
A.
it has spread into nearly every corner
B.
no security failure was reported by any company
C.
cyber security has got no attention yet
参考答案