单词：C. diphtheriae
[网络] 白喉棒状杆菌
词型变化：名词复数形式 : c. diphtheriaes
单词：C. diphtheriae 相关文章
Unclean water, crowded shelters and dirty conditions create a perfect environment at the Balukhali refugee camp for spread of preventable diseases. The camp is in Coxs Bazaar, a town in southeastern Bangladesh. It is home to some of the estimated 650
发表于:2019-01-03 / 阅读(207) / 评论(0)
2018年VOA慢速英语(一)月
2018年VOA慢速英语(一)月