题目内容：

    On the summer of 1995, a second-year graduate student named Sergey Brin was giving a tour of Stanford University to prospective students. Larry Page, an engineering graduate from the University of Michigan, was one of those being shown around the campus.

“We both found each other obnoxious and annoying with strong opinions about things,” said Brin. “But we said it a little bit jokingly. Obviously, we spent a lot of time talking to each other, so there was something there.”

The technology of the web at the time meant that people could tell where a webpage linked to just by reading its code. However, to get a complete list of every page to which it linked, they needed to check every other website on the Internet.

Page’s “BackRub” project aimed to qualify these backlinks (反向链接). It was a complex task that not only demanded vast computing resources, but also required extremely complex mathematics, which was where the math genius Brin came in.

Later, Page and Brin came up with the PageRank algorithm - a ranking system which would prove to be a breakthrough idea. And then, BackRub became Google, a play on the term “googol,” meaning “10100.” The system successfully enabled users to search all 24 million pages stored in its database.

On September 15, 1997, Google.com was registered. In August 1998, it got its first funding in the form of a check for $100,000 written by Andy Bechtolsheim, co-founder of Sun Microsystems, to “Google Inc.” But still there were troubles. Later that month, Page and Brin moved into the garage (车库) of friend Susan Wojcicki (now the CEO of YouTube), and received further investment from Amazon founder Jeff Bezos, among others.

Early in 1999, Page and Brin attempted to sell Google to Excite, at the time the No. 2 search engine behind Yahoo, for one million dollars. However, even after the pair had been talked down to $750,000, Excite CEO George Bell rejected them. With no buyer in sight, Google started hiring engineers and moved to an office in California in March 1999. In 2001, Eric Schmidt was hired first as chairman and then CEO, leaving Page and Brin to continue developing Google’s products and technologies respectively. By the end of its first decade, Google had effectively won the search engine wars.

1.According to the article, what can we learn about Larry Page and Sergey Brin?

A.They first met each other when studying at Stanford.

B.They found their first encounter rather unpleasant.

C.They had no intention of running a business initially.

D.They got financial support from Stanford to work on the ranking system.

2.Paragraphs 4 to 5 mainly talk about ______.

A.what motivated Page to launch the “BackRub” project

B.how the “BackRub” project led to the founding of Google

C.how the PageRank algorithm worked

D.how Brin joined Page in carrying out the “BackRub” project

3.According to the article, who did NOT make an investment in Google?

①Andy Bechtolsheim.     

②Susan Wojcicki.

③Jeff Bezos.               

④George Bell.

A.①② B.①③

C.③④ D.②④

4.What may be the best title for the passage?

A.The Internet: how it changed the world

B.Giant Google: how it beat Excite and Yahoo

C.Excite: CEO regretted for refusing the best offer

D.Google at 20: how two students changed the Internet