更多“关于防水卷材施工说法正确的是( )”相关的问题
In its early history, Chicago had floods frequently, especially in the spring, making the streets so muddy that people, horses, and carts got stuck. An old joke that was popular at the time went something like this: A man is stuck up to his waist in a muddy Chicago street. Asked if he needs help, he replies, "No, thanks. I"ve got a good horse under me."The city planner decided to build an underground drainage (排水) system, but there simply wasn"t enough difference between the height of the ground level and the water level. The only two options were to lower the Chicago River or raise the city.An engineer named Ellis Chesbrough convinced the city that it had no choice but to build the pipes above ground and then cover them with dirt. This raised the level of the city"s streets by as much as 12 feet.This of course created a new problem: dirt practically buried the first floors of every building in Chicago. Building owners were faced with a choice: either change the first floors of their buildings into basements, and the second stories into main floors, orhoistthe entire buildings to meet the new street level. Small wood-frame buildings could be lifted fairly easily. But what about large, heavy structures like the Tremont Hotel, which was a six-story brick buildingThat"s where George Pullman came in. He had developed some house-moving skills successfully. To lift a big structure like the Tremont Hotel, Pullman would place thousands of jackscrews (螺旋千斤顶) beneath the building"s foundation. One man was assigned to operate each section of roughly 10 jackscrews. At Pullman"s signal each man turned his jackscrew the same amount at the same time, thereby raising the building slowly and evenly. Astonishingly, the Tremont Hotel stay open during the entire operation, and many of its guests didn"t even notice anything was happening.Some people like to say that every problem has a solution. But in Chicago"s early history, every engineering solution seemed to create a new problem. Now that Chicago"s waste water was draining efficiently into the Chicago River, the city"s next step was to clean the polluted river.
A．It went on smoothly as intended.
B．It interrupted the business of the hotel.
C．It involved Pullman turning ten jackscrews.
D．It separated the building from its foundation.
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在计算机网络中，表征数据传输可靠性的指标是（）
A.传输率
B.误码率
C.信息容量
D.频带利用率
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人体运动是肌肉协同完成的，根据肌肉在同一活动中的不同协同作用，可分为（）和中和肌。肌肉工作可分为（）工作和（）工作。
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为多能干细胞水平上突变的克隆性疾病，以粒系增生为主，可向各系列急性变。血象显示为正细胞正色素性贫血，可见到各阶段的粒细胞，以中性中幼粒和晚幼粒细胞增多尤为突出，嗜碱性粒细胞可高达10%～20%，根据上述特征，最可能的疾病是（）
A.急性早幼粒细胞白血病 B.急性混合细胞白血病 C.嗜碱性粒细胞白血病 D.组织嗜碱细胞白血病 E.慢性粒细胞白血病
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下列树种属于观花赏果类的有?
A. 梅花 B. 木绣球 C. 碧桃 D. 秤锤树
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开路试验两站分别进行，分为单、双换流器、带、不带线路、手动、自动。
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冠心病三期康复治疗中，Ⅱ期治疗目标包括（）。
A.控制危险因素 B.运动能力达到4～6METs C.上下1～2层楼而无症状和体征 D.缓慢间断行走100～200m无明显症状和体征 E.待体力活动能力及心血管功能改善并提高后，鼓励患者选择适当的竞技性运动
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乙醚和丁醇互为同分异构体，它们属于( )。 A．位置异构 B．碳链异构 C．官能团异构 D．互变异构
A.位置异构
B.碳链异构
C.官能团异构
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What are in fish and chips?
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使用Bootstrap只能用Hbuilder。
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float step=speed*Time.deltaTime；transform.rotation=Quaternion.RotateTowards（transform.rotation，target.rotation，step）；根据以上代码，请说明以上代码需要放到（）函数中，才可以得到正确执行。
A.Euler
B.LookRotation
C.Lerp
D.Update
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甲公司2011年6月30日每股市价为15.75元,每股收益为0.35元,则2011年6月30日甲公司的市盈率为（）
A.27.5
B.45
C.35
D.40
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长期以来，传统文化，特别是儒家“孝”文化的影响，使得家庭养老成为我国重要的养老保障方式。《礼记》“孝有三，大孝尊亲，其次弗辱，其下能养”，反映了（）。
A.中国传统孝文化不重视物质养老
B.中国传统孝文化认为养老是家中排行较小的孩子的责任
C.中国传统孝文化所倡导的家庭养老是反人性的
D.中国传统文化倡导的家庭养老重视精神奉养超越物质奉养
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