????? ????? ? ???? ??? ????? ???? ????? ??? ??????? ??????? - ?? ????- ?? ???? ????? ????I wasn't serious about studying this e book. I assumed in the evaluations of good friends that it had been pretty clear stuff. On the other hand, I listened to your audio version. I type of laughed at first and assumed, "duh". I promised to pay attention to The