问题
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19/13,1,13/19,10/22,() A.7/24;B.7/25;C.5/26;D.7
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4,13,22,31,45,54,(),() A.60, 68;B.55, 61; C.63
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(4,13)(7,22)(10,31)(13,40)() A.(15,45)B.(16,49)C.(16,51)D.(15,49)
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1/4,3/10,7/16,13/22,() A.3/5B.4/5C.1D.3/4
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0,7,13,18,22,27,33,()。A.40B.36 C.60D.46
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7,10,13,15,19,26,25,()。A.31B.17C.35D.22