阅读理解。 Computer technology has become an important part of people's life. This technology has its own special words. One well-known computer word is Google. It's the name of a popular 'search engine (引擎)' for the Internet. People use the search engine to find information about almost any subject on the Internet. The people who started the company named it Google because in math Google is a very large number-One hundred zeros follow the number one. When you 'Google' a subject, you can get a lot of information about it. If you Google someone, you might find that person's name on a blog (博客). A blog is short for a Web log. It's a personal Web page. Some people write blogs to express their opinions and ideas over the Internet. Some use them to share their lives with faraway friends or family. Others write blogs to help them deal with sickness, money problems or to choose movies to see or books to read. Some people add information to their blogs every day. People who have blogs are called bloggers. 根据短文内容，判断下列句子是否正确，对的涂（A），错的涂（B）。 (     )1. Google and Blog are two kinds of popular search engine. (     )2. One can use Google to search the Internet for all information he wants. (     )3. People may use Google to share their opinions or ask others for help. (     )4. Bloggers must add information to their blogs every day. (     )5. From the passage we can infer (推断) that computer technology is changing people's life.