343,5,1/3,1,( )。A. 1 B.-1 C.0 D.4
答案:B解析:343=73,5=51,1/3=3-1,1=1-3。底数构成公差为一2的等差数列,指数为公差为-2的等差数列,由此可知下一项应为(-1)-5=—1,故选B。
Copyright © 2016-2023 114题库网(114158.com)All Rights Reserved.  免责声明 豫ICP备19007809号-5