在胎儿时期,能通过胎盘的免疫物质是A.IgM B.补体 C.IgA D.IgG E. 发布时间:2018-01-20 11:34 │ 来源:www.tikuol.com 题型:单项选择题 问题: 在胎儿时期,能通过胎盘的免疫物质是A.IgMB.补体C.IgAD.IgGE.母亲的淋巴细胞
题型:单项选择题 How did they get there A.They started to look for the subway station.B.They Would rather drive than go by subway.C.They went by subway because the car wasn’t working.D.They drove so they wouldn’t have to go by subway. 查看答案