Butterflies don't know the color of their wings, but human eyes know how beautiful it is. Likewise, you don't know how good you are, but others can see that you are special.

 
Đề thi Olympic khu vực Nam Phi 2005 - Vòng 2 - Grade 10, 11, 12

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Language: English
Đề Thi
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Đáp án
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Download: s2s2005.pdf