URL	Title	Id
http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_3_4_21.html	Chapter 1.	4fc296dcb11c0f762a000005
http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_3_4_21_dlap.xml	DLAP questions	4fc296dcb11c0f762a000005