One way to judge the performance of a company is to compare it with other companies. This technique, commonly called “benchmarking”, permits the manager of a company to discover better industrial practices and can provide a justification for the adoption of good practices.
Any of the following, if true, is a valid reason for benchmarking the performance of a company against companies with which it is not in competition rather than against competitor EXCEPT:
E) Much of the success of good companies is due to their adoption of practices that take advantage of the special circumstances of their products of market.
请问EXCEPT前面这句话是什么意思?