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

2???????????

3???????

4???????

5???sn??

????????2?????????????????????20?????????? ???,????????(VDA)19???????????,??25%?“??????????????”?

???,“?????????”,??????????????

??(DIHK)??:“?????,????”

????????VDA???DIHK??????????,???????????????13%?,???????

????18??????,??????25%????????,?4????2???????? ????????????:????