32+3+1=13
311
=(32)(39)
=(9)(27)3
=(9)(13•2+1)3
≡(9)(1)3 (mod 13)
=9
4. 試問311 除以32+3+1 之餘數為何? (A) (B) 3 (C) 9..-阿摩線上測驗