题目:Suppose that the maintenance programmer has located a fault and must fix it without inadvertently introducing another fault elsewhere in the product, that is, a(). 假设维护程序员已经找到故障并且必须修复它,而不会无意中在产品的其他地方引入另一个故障,即()。
A. error
B. mistake
C. bug
D. regression fault
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