[背景材料] 某住宅楼是一幢地上6层、地下1层的砖混结构住宅,总建筑面积3200m

题型:问答题

问题:

[背景材料]
某住宅楼是一幢地上6层、地下1层的砖混结构住宅,总建筑面积3200m2。在现浇顶层一间屋面的混凝土施工过程中出现坍塌事故,坍塌物将与之垂直对应的下面各层预应力空心板砸穿,10名施工人员与4辆手推车、模板及支架、混凝土一起落入地下室,造成2人死亡、3人重伤、经济损失26万元人民币的事故。从施工事故现场调查得知,屋面现浇混凝土模板采用300mm×1200mm×55mm和300mm×1500mm×55mm定型钢模,分三段支撑在平放的50mm×100mm方木龙骨上,龙骨下为间距800mm均匀支撑的4根直径 100mm圆木立杆,这4根圆木立杆顺向支撑在作为第6层楼面的3块独立的预应力空心板上,并且这些预应力空心板的板缝灌混凝土浇筑仅4d,其下面也没有任何支撑措施,从而造成这些预应力空心板超载。施工单位未对模板支撑系统进行过计算也无施工方案,监理方也未提出异议,便允许施工单位进行施工。出事故时监理人员未在场。
[问题]

监理单位在这起事故中是否应该承担责任为什么

考点:二级建造师建筑工程建筑工程管理与实务
题型:问答题

太赫兹辐射是指频率从0.3 THz(1 THz=1012Hz),波长介于无线电波中的毫米波与红外线之间的电磁辐射,辐射所产生的T射线在物体成像、医疗诊断、环境检测、通讯等方面具有广阔的应用前景.最近,科学家终于研制出以红外线激光器为基础的首台可产生4.4 THz的T射线激光器,从而使T射线的有效利用成为现实.如图所示,关于4.4 THz的T射线下列说法中正确的是(  ).

A.它的波长比可见光短

B.它是原子内层电子受激发产生的

C.与红外线相比,T射线更容易发生衍射现象

D.与X射线相比,T射线更容易表现出粒子性

题型:问答题

行业基准收益率表明了拟建项目()。

A.对国家的净贡献

B.对行业的净贡献

C.对消费者的净贡献

D.对国民经济的净贡献

题型:问答题

Bolivia has a population three and a half million . About one tenth of the total population are white ; one-fourth are mixed Indians and white ; and more than half are full-blooded Indians . The government and the industries are under the control of the white people .

The Indians today live in much the same way as their ancestors . Most of them are farmers . Many work in the mines , for mining is the most important industry on Bolivia’s . Of all the mining products , tin is the most important , which makes up three-fourths of all Bolivia’s exports . The eastern slopes of the Andes , since there are very few roads there , are fertile but not highly developed . The two primary means of transportation are river boats and porters . East of the hill region are the great plains where tropical plants are grown . A serious problem for Bolivia is the transport of food from the warm regions , where it is grown to the mountainous regions , where most of the people live .

Bolivia gained its independence from Spain about a hundred years ago . It has been slow in developing , but its rich resources promise a better future in it .

小题1:The majority of the Bolivian population are        .

A.full-blooded Indians

B.mixed Indian and white

C.white citizens

D.all whites and mixed-blooded people小题2:The Indian’s way of life today is       

A.quite different from that of their ancestors

B.quite interesting

C.almost the same as their ancestors’

D.very exciting小题3:The main product Bolivia exports is       

A.tropical plants

B.gold and silver

C.tin

D.food小题4:Bolivia has been slow in developing , but it has hope for a better future because of its        .

A.mining products

B.rich resources

C.independence from Spain

D.two primary means of transportation

题型:问答题

定性研究方法常用于()

A.推断事物的总体特征

B.研究事物的结果

C.快速评估

D.检验问卷的信度与效度

E.样本量较大时

题型:问答题

一瓶挥发性药物,每天挥发5毫升,15天后挥发了全部的75%,假如每天挥发的速度不变,余下的几天能挥发完( )

A.4

B.5

C.6

D.7

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