更多“该患者最可能的诊断是A.急性肝炎B.药物性肝损害C.妊娠期肝”相关的问题
由于焊缝余高带来了应力集中，对动载结构的疲劳强度是十分不利的，因此要求余高越小越好。
A . 正确
B . 错误
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通货膨胀更易于在各国之间传播，具有广泛的国际破坏作用：（）
A . 通货膨胀的国际化使国际贸易发展速度放缓。
B . 严重通货膨胀降低了人民群众购买力，加剧生产和市场之间的矛盾。
C . 通货膨胀可能助长资本外流。国家之间如果没有有效的资本流动限制，资本会按照国际利率差在各国流动。
D . 通货膨胀会导致金融体系的萎缩，严重时还将导致金融市场功能紊乱。
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根据材料，回答第 56～58 题：杨某受某厂指派在本县范围内收购茶叶2 万斤，厂方提供了介绍信、营业执照副本。杨某收购后未向税务机关纳税。县税务局知悉后即作出决定，杨某须缴纳增值税5000余元。杨某不服，认为自己是接受某厂的指派，与该厂是委托关系，其税款应由厂方缴纳。县税务局未采纳杨某的意见，坚持要求杨某缴纳。第 56 题 在此情况下，杨某应当如何处理?（ ）A．杨某可以直接向法院提起行政诉讼B．杨某可以先提起复议，对复议决定不服再起诉 C．杨某必须先经过复议．不经复议不得起诉D．杨某可在复议与诉讼之间任意选择
A.杨某可以直接向法院提起行政诉讼B.杨某必须先经过复议．不经复议不得起诉D．杨某可在复议与诉讼之间任意选择
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门式脚手架可调底座和可调托座的调节螺杆直径不应小于（）mm。
A.15
B.25
C.35
D.45
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_________ the fact that she loves children. I am sure teaching is the right career for her.
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普通砖砌体，原位轴压试验时，上下水平槽孔应对齐，两槽之间相距（）。
A.5皮砖 B.6皮砖 C.7皮砖 D.8皮砖
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供货周期越短，消耗量越大，货源越充足，则物资储存期限就（）。
A、越长
B、越短
C、不变
D、不一定
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天窗内所有影响路用列车运行的作业必须在其通过前不少于（）停止，在其通过后方可进行作业；同一径路上需运行两组以上路用列车时，运行间隔时间内不得进行任何作业。
A.10min
B.15min
C.20min
D.30min
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Can Buildings Be Designed to Resist Terrorist Attack In the aftermath of the terrorist attack on the World Trade Center, structural engineers are trying hard to solve a question that a month ago would have been completely unthinkable: Can building be designed to withstand catastrophic blasts inflicted by terrorists Ten days after the terrorist attacks on the twin towers, structural engineers from the University at Buffalo and the Multidisciplinary Center for Earthquake Engineering Research (MCEER) headquartered at UB traveled to ground zero as part of a project funded by the National Science Foundation. Visiting the site as part of an MCEER reconnaissance visit, they spent two days beginning the task of formulating ideas about how to design such structures and searching for clues on how to do so in buildings that were damaged, but still are standing. "Our objective in visiting ground zero was to go and look at the buildings surrounding the World Trade Center, those buildings that are still standing, but that sustained damage," said M. Bruneau, Ph. D. "Our immediate hope is that we can develop a better understanding as to why those buildings remain standing, while our long-term goal is to see whether earthquake engineering technologies can be married to existing technologies to achieve enhanced performance of buildings in the event of terrorist attacks," he added. Photographs taken by the investigators demonstrate in startling detail the monumental damage inflicted on the World Trade Center towers and buildings in the vicinity. One building a block away from the towers remains standing, but was badly damaged. "This building is many meters away from the World Trade Center and yet we see a column there that used to be part of that building," explained A. Whittaker, Ph. D. "The column became a missile that shot across the road, through the window and through the floor." The visit to the area also revealed some surprises, according to the engineers. For example, the floor framing systems in one of the adjacent buildings was quite rugged, allowing floors that were pierced by tons of falling debris to remain intact. "Highly redundant ductile framing systems may provide a simple, but robust strategy for blast resistance," he added. Other strategies may include providing alternate paths for gravity loads in the event that a load-bearing column fails. "We also need a better understanding of the mechanism of collapse," said A. Whittaker. "We need to find out what causes a building to collapse and how you can predict it." A. Reinhorn, Ph. D. noted that "earthquake shaking has led to the collapse of many buildings in the past. It induces dynamic response and extremely high stresses and deformations in structural components. Solutions developed for earthquake-resistant design may be directly applicable to blast engineering and terrorist-resistant design. Part of our mission now at UB is to transfer these solutions and to develop new ones where none exist at present."
A. that was asked by structural engineers a month ago B. that is too difficult for structural engineers to answer even now C. that was never thought of before the terrorist attack D. that terrorists are eager to find a solution to
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氧化锌脱硫剂室温下与硫化氢（）。
A . 不反应
B . 有反应，但脱硫效果差
C . 有反应，脱硫效果好
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参照完整性的规则不包括
A．更新规则
B．删除规则
C．插入规则
D．检索规则
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后牙修复体颊舌面突度过大会引起______
A.牙髓炎
B.牙龈萎缩
C.根尖炎
D.牙龈炎
E.牙槽脓肿
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形状应大致方正，上下面大致平整，厚度200～300mm，宽度为厚度的1.0～1.5倍，长度为厚度的1.5～3.0倍，这种石料为（）。
A.块石
B.粗料石
C.细料石
D.片石
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