????????4?汾????,????4?????????,????4??????????
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?????
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??????+???????+????????=?????
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?????????????????????????????????????????????????????С?
?????3.2-6.5
?????
??????3331-4442
?????406-542
??????333-445
??????66-89
?????11-15
?????7-10
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????+60
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????+5
????+1
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