痘痘用一根铁丝围成一个长方体框架,长是十八厘米,宽比长短六厘米,高正好是长的一半.这根铁丝是多少厘米?
痘痘用一根铁丝围成一个长方体框架,长是十八厘米,宽比长短六厘米,高正好是长的一半.这根铁丝是多少厘米?
其他人气：238 ℃时间：2019-12-15 05:39:42
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156c m
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