率及比 | Rate and Ratio
INTRO
點解需要率同比? | Why Rate and Ratio?
LESSON 1
率 | Rate
LESSON 2
比 | Ratio
LESSON 3
比例尺 | Scale
ADD-ON
黃金比例 | Golden Ratio
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比例尺 | Scale
率及比 | Rate and Ratio
比例尺 | Scale
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