A.1
B.7/5
C.3
D.5/7
[单选题]5,7,21,25,()A . 30B . 31C . 32D . 34
[单选题]:5,7,3,3,25,()。A.25 B.2 C.47 D.17
[试题]5,7,,4,9,25,()A.72B256C49D169
计算:(1)/(3)×(3)/(5)+1(5)/(7)-(5)/(9)×(5)/(7)1-(5)/(7)×(21)/(25)(1)/(2)+(5)/(4)×(4
计算下面各题. (2)/(9)×(3)/(5)(6)/(7)×(7)/(9)(5)/(8)×(4)/(15)(9)/(20)×(5)/(21)(6)/(5)×(
[单选题]:5,7,25,9,125,1l,( )A.13B.17C.625D.225
[主观题]4,5,15,6,7,35,8,9,()A.27B.15C.72D.63
[单选题]4,5,15,6,7,35,8,9,( )A.27B.15C.72D.63
[单选题]4,5,15,6,7,35,8,9,( )A.27B.15C.72D.63
[单选题]4,5,15,6,7,35,8,9,( )。A.27B.15C.72D.63