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selection task 1
Author:
Arthur Lee
找出平行線，把它們移到右邊。
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Orthographic Projections
A1_4.04 Two variable linear inequalities 278287
A coffee cup and a doughnut
Forming Rectangles with Squares
Euler's Formula
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theorem 19:circle theorem
Parallel Lines & Related Angles
x^3 vs
Cycle -sq 0
Cópia de Concave and Convex Mirrors
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Correlation
Random Experiments
Matrices
Quadratic Functions
Division