/ http://www.slideshare.net/images/logo.gif / 狠狠撸Share feed for 狠狠撸shows by User: thanhthaonguyen201096 https://public.slidesharecdn.com/v2/images/profile-picture.png I am a student in Hoang Le Kha school. My grade biology, and I want to make friend with Hoang Le Kha school students and those who have knowledge of biological. Happy to be acquainted with you.