问题 更新时间2023/4/3 12:59:00 The diphthongs that are made with a movement of the tongue towards the center are known as __________ diphthongs. A.widee B.closing C.narroww D.centering 答案 登录 注册 参考答案:A 出自:联大 >> 信阳师范学院-英语语言学