第1个回答 2012-11-23
djlksfklffdjf kjrj jfkldjlj fgjklgf g,jkgjh fgjhfkljk jkljl;kj kdjfshjfk jhdjfdhk fdhkjdfh fgdjkhfdklInternet is a very good thing in the twenty-first century. However, we can't learn all that we need on the Internet. First of all, Internet is not really complete. There is something that we cannot find on the Internet. Secondly, there are some viruses on the Internet, like Nimda, which appeared in 2006, marijuana, which appeared in the DOS era. Surfing the Internet may cause viruses to enter your computer. So, we can't learn all we need on the Internet. We should learn what is on our books