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A new generation addiction is quickly spreading all over the world. Weboholism ,a twentieth century disease, affects people from different ages. They surf the net, use email and speak in chat rooms. They spend many hours on the computer, and it becomes a compulsive habit. They cannotstop, and it affects their lives. Ten years ago, no one thought that using computers could become compulsive behavior that could affect the social and physical life of computer users. This obsessional behavior has affected teenagers and college students. They are likely to log on computers and spend long hours at different websites. They become hooked on computers and gradually their social and school life is affected by this situation.They spend all free time surfing and don't concentrate on homework,so this addiction influences their grades and success at school. Because they can find everything on the websites, they hang out there. Moreover, this addiction to websites influences their social life. They spend more time in front of computers than with their friends.The relation with their friends changes.The virtual life becomes more important than their real life.They have a new language that they speak in the chat rooms and it causes cultural changes in society. Because of the change in their behavior, they begin to isolate themselves from the society  and live with their virtual friends. They share their emotions and feelings with friends who they have never met in their life. Although they feel confident on the computer, they are not confident with real live friends they have known all their life. It is a problem for the future. This addictive behavior is beginning to affect all the world. 小题1:The main idea of the passage is about ____________. A.the cause of weboholism B.the advantage of weboholism C.the popularity of weboholism D.the influence of weboholism 小题2:The underlined word “obsessional” in the second paragraph most probably means _______. A.attractive B.addictive C.professional D.potential 小题3:We can infer from the passage that __________. A.weboholism has the greatest effect on teenagers B.students can hardly balance real and virtual life C.people are addicted to games on the Internet D.virtual life is more vivid and attractive anyway 小题4:Which of the following is NOT true of weboholism? A.It contributes to the development of the web. B.The chat room language may change social culture. C.The problem will be getting more and more serious later. D.People addicted to the web often become inactive in real life. 小题5:The author's attitude towards weboholism is that of being________. A.optimistic B.positive C.negative D.acceptable
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【单选题】钢筋混凝土高层建筑的框支层楼板(即转换层楼板)应采用现浇,且应有一定厚度,下列最小厚度的要求正确的是( )
A.
≥100mm
B.
≥150mm
C.
≥180mm
D.
≥200mm
【单选题】混凝土搅拌制度的三要素不包括( )
A.
搅拌时间
B.
进料容量
C.
投料顺序
D.
出料容量
【简答题】某钢筋混凝土住宅建筑为地下2层,地上26层的部分框支剪力墙结构,总高95.4m,一层层高为5.4m,其余各层层高为3.6m。转换梁顶标高为5.400m,剪力墙抗震等级为二级。地下室顶板位于±0.000m处。试问,剪力墙的约束边缘构件至少应做到下列何层楼面处为止? (A)二层楼面,即标高5.400m处 (B)三层楼面,即标高9.000m处 (C)四层楼面,即标高12.600m处 (D)五层楼面,即标...
【简答题】某设备基础长 15m、宽 1 0 m、深4m,混凝土强度等级为C20,混凝 土 由搅拌站用汽车运至现场,运输时间为 0.5h(包括装、运、卸),混凝土初凝时间为0.5h,采用插入式振捣器,混凝土每层浇筑厚度为0.3m,要求连续施工不留施工缝。已知搅拌站备有若干台强制式TQ-500混凝土搅拌机,试求每小时混凝土浇灌量和浇完所需时间。又知此混凝土水灰比为0.5,配合比为 1 :1.7:3.46,现测得...
【单选题】钢筋混凝土高层建筑的框支层楼板(即转换层楼板)应采用现浇板,且应有一定厚度,最小厚度应≥( )mm。
A.
100
B.
150
C.
180
D.
200
【简答题】某设备基础长15m、宽10m、深4m,混凝土强度等级为C20,混凝土由搅拌站用汽车运至现场,运输时间为0.5h(包括装、运、卸),混凝土初凝时间为2h,采用插入式振捣器,混凝土每层浇筑厚度为0.3m,要求连续施工不留施工缝。已知搅拌站备有若干台强制式TQ-500混凝土搅拌机,试求每小时混凝土浇灌量和浇完所需时间。又知此混凝土水灰比为0.5,配合比为1:1.7:3.46,现测得砂、石含水率分别为2....
【单选题】混凝土搅拌制度不包括()。
A.
搅拌时间
B.
投料顺序
C.
进料容量
D.
施工配比
【单选题】钢筋混凝土高层建筑的框支层楼板(即转换层楼板)应采用现浇,且应有一定厚度,下列最小厚度的要求,何者是正确的( )。
A.
≥100mm
B.
≥150mm
C.
≥180mm
D.
≥200mm
【单选题】混凝土的搅拌制度不包括
A.
进料 容量
B.
出料 容量
C.
搅拌时间
D.
投料顺序
【多选题】关于混凝土的质量控制与强度评定,下列说法正确的是( )
A.
混凝土的质量控制包括设计控制与生产控制
B.
非统计法适用于预制构件厂的混凝土的强度评定
C.
统计法适用于现场搅拌批量不大的混凝土强度评定
D.
采用非统计法评定混凝土强度时,其强度应满足fcu≥1.15fcu.k
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