一本字典厚5厘米,3本字典叠起来多少厘米?6本字典叠起来厚多少厘米?10本呢?

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一本字典厚5厘米,3本字典叠起来多少厘米?6本字典叠起来厚多少厘米?10本呢?

一本字典厚5厘米,3本字典叠起来多少厘米?6本字典叠起来厚多少厘米?10本呢?
一本字典厚5厘米,3本字典叠起来多少厘米?6本字典叠起来厚多少厘米?10本呢?

一本字典厚5厘米,3本字典叠起来多少厘米?6本字典叠起来厚多少厘米?10本呢?
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