喷射混凝土抗压强度试验,2车道隧道要求每隔( )m应至少在拱部和边墙各制作一组试件。 发布时间:2017-06-17 15:48 │ 来源:www.tikuol.com 题型:单项选择题 问题: 喷射混凝土抗压强度试验,2车道隧道要求每隔( )m应至少在拱部和边墙各制作一组试件。A.5B.10C.20D.50
题型:单项选择题 Though many extra planes and trains are used to carry passengers, traffic tools are still _____ neededduring "May Day" holidays. [ ]A. eagerlyB. badlyC. equally D. slightly 查看答案