Question

三個(gè)奇數(shù)的和乘偶數(shù)，積是（　　）

A．奇數(shù)

B．偶數(shù)

C．奇數(shù)或偶數(shù)

Answer 1

分析：根據(jù)奇數(shù)與偶數(shù)的意義，是2的倍數(shù)的數(shù)叫做偶數(shù)，不是2的倍數(shù)的數(shù)叫做奇數(shù)；奇數(shù)+奇數(shù)=偶數(shù)，奇數(shù)+偶數(shù)=奇數(shù)，奇數(shù)×奇數(shù)=奇數(shù)；偶數(shù)×偶數(shù)=偶數(shù)；奇數(shù)×偶數(shù)=偶數(shù)；據(jù)此解答．

解答：解：根據(jù)分析：因?yàn)槠鏀?shù)+奇數(shù)=偶數(shù)，所以三個(gè)即數(shù)的和一定是奇數(shù)．由因?yàn)槠鏀?shù)×偶數(shù)=偶數(shù)，所以三個(gè)奇數(shù)的和乘偶數(shù)，積一定是偶數(shù)．
故選：B．

點(diǎn)評(píng)：此題主要根據(jù)奇數(shù)、偶數(shù)的意義和奇數(shù)、偶數(shù)的性質(zhì)解答．