????12????24?????? ??,12??????????24?????????,???12???????,?????????,?????????,????????,?????,?????????,??,???????,?????????????????????????????11??????????????14????????,?20.4??

??????????????:????????????? “????????”_????

?? ??:?????20.4????????????

????:1?????????:???????????

2???????

3??????????

4???????????

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

????12????24?????? ??,12??????????24?????????,???12???????,?????????,?????????,????????,?????,?????????,??,???????,?????????????????????????????11??????????????14????????,?20.4??

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