请教LZM-11-22

createdream

Proponents of artificial intelligence say they will be able to make computers that
can understand English and other human languages, recognize objects, and reason (as an expert does - computers that will be used to diagnose equipment breakdowns, deciding whither to authorize a loan, or other purposes such as these) .

ans.  (C) like an expert - computers that will be used for such purposes as disgnosing equipment breakdowns or deciding whither to authorize a loan.

请问：  （C） 中 computers that... 在句中是什么成分？  是前面 make computers 的computers 的同位语吗？

谢谢！

shinogigi

同位语