问题
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:3,8,1,12,21,()。 A.34 B.9 C.33 D.11
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1/2,3/4,7/8,15/16,(),63/64。A.31/34 B.33/34 C.31/32 D.23/32
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定义新运算:3△2=3+33=36,2△3=2+22+222=246,1△4=1+11+111+1111=1234。则8△6的值为()。A.
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3, 8,1,12,21, ()。A.34 B.9 C.33 D.11
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1/3,2/5,4/9,(),16/23,32/33A.6/13B.8/15C.10/17D.12/19
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1/2,3/4,7/8,15/16,(),63/64。A.31/34B.33/34C.31/32D.23/32
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