( )玻璃应采用干法加工合成,夹片宜采用聚乙烯醇缩丁醛(PVB)胶片。A.钢化B. 发布时间:2017-12-14 14:17 │ 来源:www.tikuol.com 题型:单项选择题 问题: ( )玻璃应采用干法加工合成,夹片宜采用聚乙烯醇缩丁醛(PVB)胶片。A.钢化B.镀膜C.针孔D.夹层
题型:单项选择题 _____ is well known to the world is that China has very top technology in space industry.A.ItB.AsC.WhatD.Which 查看答案