After months of speculation about what Amazon.com would do with its mysterious search-engine company, A9, Web surfers finally got their first taste on Apr. 14. Yet despite of some intriguing new features not yet found 1. ____ on leading sites such as Google and Yahoo! , the site (www.a9.com) -- still in test mode -- rises as many questions 2 ____ as it answers. The biggest question remains is whether Amazon, 3. ____ through A9, would clash into Google more directly. 4. ____ Google itself is testing a search engine for products called Froogle that’s starting to appeal Web shoppers. 5. ___ At the same time, Amazon clearly isn’t looking to limit A9’s horizons. How directly A9 eventually goes up against the reigned 6. ____ search champion, it faced lots of challenges. For one, 7. ____ it may run into some of the same privacy issues that recently have plagued Google. A9’s privacy policy points out that information provided through entering search term 8. ____ or by signing into one’s Amazon account could supply the company with information that could personally identify the searcher. Those may be somewhat less intrusive（打扰的，冒犯的） than 9. ____ Google’s upcoming Gmail free e-mail offering, which could search the contents of messages to pitch personalized ads. But comments posted on some sites already indicate some people are uncomfortable with Google’s potential threats to privacy. 10.____