在牙齿磨片中不可能见到的结构是 A.小管间牙本质 B.小球间牙本质 C.成牙本质细胞 发布时间:2017-07-17 10:23 │ 来源:www.tikuol.com 题型:单项选择题 问题: 在牙齿磨片中不可能见到的结构是A.小管间牙本质B.小球间牙本质C.成牙本质细胞D.托姆斯粒层E.小管周牙本质
题型:单项选择题 Please keep quiet. If you make a lot of _____, you may disturb others. [ ]A. voiceB. noiseC. sound D. singing 查看答案
题型:单项选择题 —It’s too hot.Would you mind the door? — ,please do it now.A.to open, OkB.opening, CertainlyC.to open, Good ideaD.opening, Of course not 查看答案