?2?6?? ?????,???2????????6????????,???,??

??:????

????,??????????????,????

????,???7????????????????????

???2????4?,??????????????,?????????????????????????? ???????????? ??????????????????

???????????,?????????5?(NSC),??????????6??,8?????????????????????

???????????:?????? ??“????app”

?? ????????????:?????????

????:1?????app:??????

2?500?3????????

3??????????

4?????300??

5????????????

?2?6?? ?????,???2????????6????????,???,??

??:????

????,??????????????,????

????,???7????????????????????

???2????4?,??????????????,?????????????????????????? ???????????? ??????????????????

???????????,?????????5?(NSC),??????????6??,8?????????????????????

???????????:??????