【简答题】阅读理解 The two things-snow and mountains-which are needed for a ski area are the two things that cause avalanches(雪崩), large mass of snow and ice crushing down the side of a mountain-often called 'White...
【单选题】当混凝土强度等级为 C30 、钢筋为直径 20的三级钢 、抗震等级为三级时,纵向受拉钢筋的抗震锚固长度 l aE 为
【单选题】【背景资料】某多层现浇钢筋混凝土框架结构主体施工。混凝土设计强度等级分别为:柱C35,梁板C25。施工中出现以下情形:情形1:现场一次进了65t,直径25mm的HRB335钢筋(同炉批),发现其出厂检验报告是复印件,在现场监理的见证下,钢筋工取了一组试件送样检测。拿到钢筋检测合格报告后,现场即进行正常的钢筋加工和焊接。情形2:现场采用商品混凝土,汽车泵浇筑,每层分二个施工段流水作业。每层柱和梁板仅...
【判断题】粒状珠光体的强度小于片状珠光体的强度,但塑性和切削加工性能没有片状珠光体好。
【简答题】What two new things will your body need to adapt to?
【单选题】Snow Ranger The two things—snow and mountains—which are needed for a ski area, are the two things that cause avalanches, large mass of snow and ice crushing down the side of a mountain—often called Wh...
【简答题】当混凝土强度等级为 C30 ,直径为 25mm 的 HRB400 的钢筋,抗震等级为二级,受拉钢筋的锚固长度为( ) mm 。
【简答题】The two things are the same in outward form. butdifferent _____. A. in addition B. in brief C.in common D. in essence
【简答题】What were the two things that interested Dr. Huber?
【判断题】拉刀适合批量加工,刀具刚度较大,可以垂直放置。