????:1?????150:??????????

2???????

3???????

4?????QQ?

5??????????

??2???????????????????6??????????????,?????????????????,???2?????????????4?????????,?????????????

?,???????????????????????????,?,?????????????????,??????10%??,??,???????????????,?????????????

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

????,???,?????????????,??????????????????,??????????????????????????(???????????? ?????????? ????????? ???????)

?????:?????