【单选题】关于支架预压说法错误的是
A.
支架是浇筑混凝土施工中的临时性结构,需要承受大部分施工荷载
B.
支架在安装前要对可能产生的变形与挠度进行计算
【简答题】It seems that every week someone becomes “the first” or “the youngest” or even “the first married couple” to do something that doesn’t seem to be very useful to the rest of us. Why do they do it? Don’...
【单选题】关于支架法现浇预应力混凝土连续梁施工技术,说法错误的有()。
C.
安装支架时,应根据支架拼装间隙和地基沉降等,设置预拱度
D.
各种支架和模板安装后,宜采取预压方法消除拼装间隙和地基沉降等非弹性变形
【判断题】当前现代科学技术不断提高,只要根据对灾害性天气如旱涝、低温冷害、冰雹、干热风、台风等的监测和预报,积极采取有效的防御措施,是可以完全避免灾害性天气对工农业生产的影响。
【单选题】. China and the United States held their first strategic dialogue on August and ______to increase co-operation and constructive relations.
【单选题】In the narration of the first two paragraphs, the author employs the device of ______.
【单选题】气候资源条件调查中的灾害性气候调查的内容有干旱、洪涝、台风、寒流、冰雹等情况,以及对农业生产的影响、预防或( )措施等。
【单选题】Mary said nervously that it was _______ honour to have got _______ first prize in the composition contest.