在Kirkendall效应中,Zn的扩散通量在通过______时大于Cu的通量扩散通 发布时间:2017-12-06 04:51 │ 来源:www.tikuol.com 题型:单项选择题 问题: 在Kirkendall效应中,Zn的扩散通量在通过______时大于Cu的通量扩散通量。A.原始涂层(焊接)面B.俣野面C.标记面
题型:单项选择题 34. We knew we were getting close to the park____we started seeing the tiger right next to the road.A.whenB.beforeC.whileD.Until 查看答案
题型:单项选择题 You can’t ___ possession of the house until all the papers have been signed.A.putB.holdC.takeD.own 查看答案