?? ???????144????????
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????:1??????????:100?1?????
2?????vx
3?????90????????
4????????????
5?????v
????????9??4???????? (??)??????????144?????????,????????????????????????4??,??«??144????????»(??«????»)?
?????????,???,??????7?????????,???144??,??,??
??,??????????????????????????,??60%,??96%?
??????????,??,??????????????,7?????????1000???????????????,??????164%?
??,«?»?????????????????????????????????,????city?????????????????
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