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

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

3?????

4???????90?????

5?????QQ?

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

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

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

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

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

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