วิชาสามัญสำคัญอย่างไร?

?????? 9 ?????????????????????????????? ?????????????? ??? ????? ?????? ????1(????????) ??????? ???? ???? ????2(????????) ???????? (????????) ???????????????????????? TCAS ??????? 2,3,5 ???????????????????????? ???????????????????????????????????????????????????

*???????? : ???????????????????????????????????????? (??? 3) ? ??????????????????? (????????????????????????? ???? ?? ?? ??)

TCASter coach