Yusuf Mehdi, Microsoft's Senior Vice President of Online Services, finally reacted on Google's statement for accusing their search results as a cheap imitation of Google's search results.
According to their official statement published on the Bing Search Blog:
“We do not copy results from any of our competitors. Period. Full stop. We have some of the best minds in the world at work on search quality and relevance, and for a competitor to accuse any one of these people of such activity is just insulting.”
That's the response of Bing to Google for addressing their search results as a copycat of Google's search results. Google started to complain about this after running series of test and experiments that involved manual promotion of random web pages to rank for absurb terms on Google.com. A small percentage of the test queries — 7 to 9 of about 100 tested — later produced the same page to rank on Bing.com.
With this Google's test, they prove Bing has been looking out on what people search for on Google, the sites they click and visit from Google’s search results, then uses that information to make Bing’s own search engine listings better.