:tup: http://www.sciam.com/podcast/?ref=p_house
this website is excellent. it gives us knowledge of science in all fields.
u also can use it to practise listening.
good lucks for every dreamers
---------------------------------------------:grad:
P.S. i will take TOEFL 4.29 2007 8:00 (beijing time,in China)
glad to make friends with all of u. thank u.:p