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【简答题】
大体积混凝土的裂缝形成原因有哪些？为保证大体积砼的整体性，可采用哪些浇筑方案？
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反馈参考答案：
举一反三
【多选题】Which vessels do originate from Baozhong, called as “one source and three divergences 一源三歧 ”?
A.
Thoroughfare Vessel ( Chong )
B.
Belt Vessel ( Dai )
C.
Governor Vessel ( Du )
D.
Link Vessel ( W ei )
E.
C o nception Vessel ( Ren )
【多选题】下列关于高处坠落事故的预防措施正确的有（）。
A.
作业人员可任意利用吊车臂架等施工设备进行攀登
B.
遇有雨雪天气不得进行露天攀登与悬空高处作业
C.
各种垂直运输接料平台的入口应设置安全门或活动防护栏杆
D.
使用安全带应做垂直悬挂，低挂高用较为安全
E.
高处作业人员应经过体检，合格后方可上岗
【简答题】双代号时标网络计划的特点包括()。 A箭杆的长短与时间有关 B可直接在图上看出时间参数 C不会产生闭合回路 D修改方便 E不能绘制资源动态图
【单选题】A technician is dispatched to install additional RAM in a computer. The technician unplugs thesystem from the power source, and removes the cover of the PC. Which of the following shouldthe technician...
A.
Update the BIOS for compatibility.
B.
Put on an ESD strap.
C.
Use an anti-static bag to hold the RAM while installing.
D.
Clean out the PC with compressed air.
【单选题】A: Both natural gas and biogas create emissions when burned, but far less than coal and oil do. B: Unlike natural gas, which is pumped from deep underground, biogas counts as a renewable energy source...
A.
statement and supporting statistics
B.
cause and effect
C.
statement and examples
D.
comparison and contrast
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