问题
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81,64,121,36,(),16 A.144B.169C.196D.25
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100 3/4,______,64 16/12,49 64/36,36 256/108 () A.81 4/5 B.81 5/9 C.82D.81
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81,64,121,36()16 A.144 B.169 C.196 D.225
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81,64,121,36,(),16 A.144 B.169 C.196 D.225
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27,16,25,36,23,64,21,()A.81 B.100 C.121 D.19
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4 27 16 25 36 23 64 21 ()A.81 B.100 C.121 D.144