单选题 When a software weakness is revealed, it is often ______ to apply the correct software patch before an attacker can convert the bug into an "exploit" that can be used to cause major damage.

  • 1、
【正确答案】 1、a race against the clock    
【答案解析】[解析] When a software weakness is revealed，it is often ______ to apply the correct software patch before an attacker can convert the bug into an"exploit"that can be used to cause major damage．
[定位] 第三段。
[解析] 根据关键词，略读本文第一部分(该部分都是在介绍软件漏洞的危害)，在第三段找到题干原文。