????:1??????95?98:????????????

2???????

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

4???????

5??????????

?2????????12????????????(????? ???)?????12???????????,????????????????????,???????????????????,????,?,???????????????????20%?

2?12??,?????????????????????? ???

?????????????????????????,??,?????????15%?

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

????????????2?5??,???(????????????)

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