31.  However , we are also be persecuted by some bad elements, such as junk mails, porn sites, false news, etc.

32.  Imagine such a case, if you visit pornographic websites, your computer may get a virus from it, which can help those hackers to get your information and even damage the organizations' sites.

33.  The online petition titled Stop the Killing of Wolves initiated by one of the most popular wildlife sites, Defenders of Wildlife, has already got 63802 people signed up.

34.  Geologists help to find meaningful historical sites; chemists then take good preservation of those cultural relics and assure the time of when they were made through analyzing carbon atoms contained in.

35.  Meanwhile, several conservative sites have been established in Jiangxi and Hunan in the early 2005.

36.  The Forestry Administration of China has promised further establishment of sites as well as international cooperation (Wikipedia, ).

37.  It is a better choice to spend time on search engines like Google and Baidu or social network site like Renren.

38.  First of foremost, boys and girls prefer to talk at various sites.

39.  Web sites have become available for people to research diseases and talk to doctors online at sites such as, America's Doctor.

40.  People enjoy visiting the sites for they can take advantages of the recourse freely or just pay a little.