:3,4,7,16,43,()。
A.62
B.63
C.124
D.126
请帮忙给出正确答案和分析,谢谢!
:3,4,7,16,()A.23 B.27 C.39D.43
1/2,3/4,7/8,15/16,(),63/64。A.31/34 B.33/34 C.31/32 D.23/32
3,4,7,16,() A.23 B.27 C.39 D.43
3,4,7,16,43,()。A.62 B.63 C.124 D.126
3,4,7,16,() A.23B.27C.39D.43
计算1/4+3/8+7/16+15/32+31/64+63/128+127/256+255/512+511/1024=? A.3×(513/1024)B