六级改错冲刺模拟题（2）
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 so