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

2???????

3????????????

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

5??????

??????2??20?? ????19?????????,????????????,??,????????????????

??,???????????????????????,?????????“??????????”???????,???????,????????????????????,???????

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

????????,1??????????A??4.95?????????????????,??????????20%?

?????,???,????????????????????“????????????????????”? ??????????????????:?????????????