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g
18
19
20
21
22
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1
4
3
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t@꠆Tgı(sh)λ(sh)
A. 1919 B. 1920 C. 2019 D. 1920.5
𰸡B
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Ա}@M(sh)(j)λ(sh)20(sh)19.
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}Ŀ\_ǣ
A. a2a3=a6 B. a24=a6 C. a4a=a3 D. x+y2=x2+y2
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132
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A. 2 B. 3 C. 4 D. 5
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