动态喉镜主要是用来观察() A.声带形态 B.声带振动 C.声带长度 D.声带体积 发布时间:2017-09-10 21:43 │ 来源:www.tikuol.com 题型:单项选择题 问题: 动态喉镜主要是用来观察()A.声带形态B.声带振动C.声带长度D.声带体积E.声带麻痹
题型:单项选择题 American English has changed ________ time. There are several reasons ________ this.A.over; for B.for; with C.in; ofD.during; about 查看答案