一,13,(),22,31,53A16B17C18D19我觉得应该是9才对,可答案却选A二,25,15,10,5,5()A10B5C0D-5三,0.2,0.34,0.456（)A0.56789B0.6789C0.5678D0.4567四,-3/11,1/11,（）,6/11,7/11A4/11B5/11C2/11D3/11五,1/4,1/8,1/14,1/22,（

Question

一,13,( ),22,31,53A16 B17 C18 D19我觉得应该是9才对,可答案却选A二,25,15,10,5,5 ( )A10 B5 C0 D-5三,0.2,0.34,0.456 （ )A 0.56789 B 0.6789 C 0.5678 D 0.4567四,-3/11,1/11,（ ）,6/11,7/11A4/11 B5/11 C2/11 D3/11五,1/4,1/8,1/14,1/22,（ ）A1/30 B1/32 C1/34 D1/36

Answer 1

一,13,( ),22,31,533,6,9,12二,25,15,10,5,5 ( )5+5=10,10+5=15,15+10=25三,0.2,0.34,0.456 （ )0.6789四,-3/11,1/11,（4/11 ）,6/11,7/11相减成等差五,1/4,1/8,1/14,1/22,（ ）相减成等差"