????? ???? ??? ???? ?? ???? ??? ??????.? ? ???? ??? ? ????? ????. ?? ??? ??? ????(???? ???? ??? ?? ?????..) ??? ?.??????????????????????????????????????“??????”?????? ??? ? ?… ?? ?????. ??? ?? ?? ?? ?? ???? ????? ?? ??? ??? ???. ?? ?? ???? ????? ?? ?? ? ???? ?????…In the beginning, the demand for test seats was larger than availability, and