调整钢轨高低时，WJ-7型扣件当调高量小于10mm时，在轨下放入调高垫板，当调高量超 发布时间：2019-08-27 18:31 │ 来源：www.tikuol.com 题型：单项选择题 问题： 调整钢轨高低时，WJ-7型扣件当调高量小于10mm时，在轨下放入调高垫板，当调高量超过（）时，可同时在铁垫板下放入调高垫板。A.5mmB.10mmC.15mmD.20mm
题型：单项选择题 用方框中所给单词的适当形式填空。 surprise,him,proud,use,die1. He is very smart and he can work out the problem by_________.2. The girl is very good so her parents take_________in her.3. We are_________that he passed the English exam.4. There_________to be many pandas in our country. But now they are becoming fewer and fewer.5. Her grandpa has been_________for two years. She misses him very much. 查看答案