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根據百分率找數量（二）: 例1
Author:
GeoGebra Institute of Hong Kong
Discover Resources
median income
Square Exploration
Midsegments
ThompsonCurriculaSection4-4again
Central and Circumscribed Angles
New Resources
Farrell_Megan_task02GeoGebra
[EnQuantum Continuum]: Островок и точька опоры для Архимеда - [graphical method]
Retta
Schriftliches Multiplizieren
Задание 1 С.А.
