本课所用的资源网站

http://www.dlzoo.com/

http://www.beijingzoo.com/

http://www.0-12.com/4/4-1/4-1-10.htm

http://www.fjsen.com/tech/digest/dt0026.htm

http://www.bjxch.gov.cn/xckj/kjbl/kjysh/kj4.htm

http://www.hongen.com/edu/kxdt/kjbl/kc022801.htm

http://www.uschinahealth.com/briefings/2000/Dec/08/b6.htm