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Ұһʵ330ң࿪󷭱
·1ɺŵ20ѧٻܣͿԿʼһȼԽ߲Խߡǰѿ20죩30330ңܣ100=120ߣ࿪ߡֱӳ

·2ɺŵ25ԺˢƣǿʯˢʯͷԽǿʯƷԽԽֵǮ6һ50ףӣȶ100ϷǿʯӲͨԽϷļ۸

·3:ɺŵ40Ұҵ40ת·3.Ҳɼڡװֱӳ۲ɼϤϷԺܸܵΣ
