1,1/2 , 6/11 ,17/29 , 23/38 ,( )A.28/45 B.117/191 C.31/47 D.122/199
1,1/2 , 6/11 ,17/29 , 23/38 ,( )
A.28/45 B.117/191 C.31/47 D.122/199
相关考题:
计算:(1)(-8)+(-9);(2)(-17)+21;(3)(-12)+25;(4)45+(-23);(5)(-45)+23(6)(-29)+(-31);(7)(-39)+(-45)(8)(-28)+37;(9)(-13)+0.
191, 95, 47, 23, 11, ( ) A.9 B.7 C.5 D.3