????
?????? ????????90
???50%??????????????????3%?????????25??122%??
????????????????????20%??
???Ч??????????????????50%??????Ч?????????
???ü???????????????
????
???????????????90
???????????60%????????????????????????????????22%????????3%??????25????94%????????????????????20%??
???Ч????????????????30%????????о?????(30%????????????????)??
????汸???????????????????????????????????????????????????
???????????????
???
?佫?????????????90
???18%-30%???????????1%-2%??????25??????2?Σ???????????????????20%
???Ч??????????Ρ?
????????????????????????????????????
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