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

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

出自：国家开放大学-理工英语2

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