???? ???? ?? ??(??? ??·???????)=???? ?????? ??? ??? ???? ???? ??? ??? ??? ??? ?? ??? ???? ??? ???? ???? ?? ?? ??? ?? ??? ????. 2? ?.
??? ??(??? ??·????)=????, ???? ???, ?????, ????? ????, ???? ??? ??? ??? ??? ??? ??? ??? ??? ???. 1?2000?.
???(??? ??·??????)=???(uThinking)? ‘?? ?? ??(iThinking)’? ?? ‘?? ?? ??’? ???. ???? ??? ‘?? ?? ??’? ??? ? ??? ????? ????? ????? ???? ????. 1?4000?.
?????? ????(?? ???? ??·??? ?·????????)=‘????? ??’? ? ??? ??? ????? ??? ??? ?????. ???? ?? ??? ??? ???? ???? ??? ?????? ????? ????. 2?8000?.