细胞内液的主要阳离子是A.Ca2+ B.K+ C.Mg2+ D.Na+ E.Zn2+ 发布时间:2017-06-06 04:26 │ 来源:www.tikuol.com 题型:单项选择题 问题: 细胞内液的主要阳离子是A.Ca2+B.K+C.Mg2+D.Na+E.Zn2+
题型:单项选择题 Three students in ten will go and _____ to stay in the classroom.A.the rest areB.the rest isC.the other areD.the other is 查看答案