??????????2??1????,??,????,??????1550??????????25%?????????????????????300????????2????????????4??????????????????????????,1250?21????
????????,??????,?????????
?2??????????1?,?,????25%??(?? ???????) ????:???????????????
??????????????????????
??????????????360°????
??????6.6???????10??
???:???????????:????????
??????????????????????
?????????,??????????40??
???????!??????20???????
??????????????????????
?????????????????????
??????GM??:???????????
??????:??????????
??????????!??????????40?
??????????????????????
????????????????????
??:????????????
??|????????:????????
?????????????????????
?????????????????????
????????????????or??????
??:??????????
?????????????????????
?????????????????????
??2???????0.8%??????
????????????????:?????
??2?????????:?????????