问题
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-2,-1,1,5,(),29。 A.17 B.15 C.13 D.11
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-2,-1,1,5,(),29。 A.17 B.15 C.13 D.11
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1/4 3/10 () 2/5 A.23/50 B.17/40 C.11/30 D.7/20
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1 1/2 6/11 17/29 23/38 ()A. 117/191 B. 122/199 C. 28/45 D. 31/47
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1/4,3/10,(),2/5A. 23/50 B. 17/40 C. 11/30 D. 7/20
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-2 -1 1 5 ( ) 29。A.17 B.15 C.13 D.11