問題文
The firm now carries several products side by side, and the older of them keep calling for repair. Which difficulty does the account name as the one that ways of working by steady growth run into?
選択肢
- The difficulty named there is that the cases run before a change are of a different sort from the ones run after it, so the two sets stand apart, clearly, because a fix can damage the thing in an obscure way, so the whole bank of cases run before has to be run again rather than the changed part alone.
- The difficulty named there is that the upkeep of the thing costs far more checking per line written than the building of it does, clearly, because a fix can damage the thing in an obscure way, so the whole bank of cases run before has to be run again rather than the changed part alone.
- The difficulty named there is that the writers of a thing are quite the poorest judges of whether their own work holds up in practice, clearly, because a fix can damage the thing in an obscure way, so the whole bank of cases run before has to be run again rather than the changed part alone.
- The difficulty named there is that the tools of the trade run a case just once, then set it aside for ever afterwards as a matter of course, clearly, because a fix can damage the thing in an obscure way, so the whole bank of cases run before has to be run again rather than the changed part alone.