一寸等于几厘米?一尺等于几厘米?一亩等于几平方米?一升等于几斤?

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一寸等于几厘米?一尺等于几厘米?一亩等于几平方米?一升等于几斤?

一寸等于几厘米?一尺等于几厘米?一亩等于几平方米?一升等于几斤?
一寸等于几厘米?一尺等于几厘米?一亩等于几平方米?一升等于几斤?

一寸等于几厘米?一尺等于几厘米?一亩等于几平方米?一升等于几斤?
建议你先弄弄清楚这些单位的正确含义吧.升是容量单位,斤是重量单位,根本不能换算.