9,1,4,3,40,( ) A.81 B.80 C.121 D.120,

熱心網(wǎng)友

選C 1219÷3=3......01÷3=0.3....14÷3=1.....13÷3=0.....040÷3=13.....1121÷3=40.....1規(guī)律就是每個(gè)數(shù)除于3的余數(shù)依次為0,1,1,0,1,1

熱心網(wǎng)友

好雷害啊

熱心網(wǎng)友

選A的朋友怎么算的啊?能和大家共享嗎?

熱心網(wǎng)友

選C 1219÷3=3......01÷3=0.3....0.14÷3=1.....13÷3=0.....040÷3=13.3.....0.1121÷3=40.....1規(guī)律就是每個(gè)數(shù)除于3的余數(shù)依次為0,0.1,1,0,0.1,1

熱心網(wǎng)友

A