疾病的三间分布包括A.年龄、性别和种族 B.职业、家庭和环境 C.国家、地区和城乡 发布时间:2018-07-04 18:48 │ 来源:www.tikuol.com 题型:单项选择题 问题: 疾病的三间分布包括A.年龄、性别和种族B.职业、家庭和环境C.国家、地区和城乡D.短期波动、季节性和周期性E.时间、地区和人群分布
题型:单项选择题 ---- Hello. Is that Mr. White or Mr. Jack speaking?----- Sorry______, . A.both of them are not in B.none of them are in C.neither of them is out D.would you please ring them up this afternoon? 查看答案