高危AFP病例的条件包括() A.小于3岁 B.小于5岁 C.服脊灰疫苗少于3次或不 发布时间:2017-07-18 20:35 │ 来源:www.tikuol.com 题型:多项选择题 问题: 高危AFP病例的条件包括()A.小于3岁B.小于5岁C.服脊灰疫苗少于3次或不详D.未采或未采集到合格粪便E.小于14岁
题型:多项选择题 John and I__friends for eight years. We first got to know each other at a Christmas party. But we__ each other a couple of times before that.A.had been; have metB.have been; have metC.had been; had metD.have been; had met 查看答案