更多“泥（页）岩密度仪的浮标上有两个样品托盘。”相关的问题
系统的（）表示系统结构图中控制的总分布。
A.深度 B.宽度 C.扇出 D.扇入
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下列关于HAVING子句的叙述，正确的是
A) 使用HAVING子句的同时必须使用GROUP BY子句，二者位置前后没有限制B) 使用HAVING子句的同时可以使用WHERE子句C) 使用HAVING子句的同时一定不使用WHERE子句D) 使用HAVING子句的同时一定使用WHERE子句
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FE-10711A/B切换后，下列控制阀的状态正确的是（）。
A . A、FFIC14406、FFIC10809在手动位
B . B、FIC10711在串级位
C . C、PIC10716在自动位
D . D、FFIC10909、FFIC11008在手动位
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对接受过“商务礼仪”培训的一位客服，衡量其培训前后的正确接听电话比例，是对培训效果()方面的评价。
A.学习
B.反应
C.结果
D.行为
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The evolution of the social sciences has reached a crucial point that might be called a phase change in which old, atomistic, and impressionistic ways of doing research are superseded by a far more systematic and united methodology. To bring social sciences to the level of rigor already achieved by some of the physical sciences, a new type of facility will be needed. This will be a trans-disciplinary, Internet-based collaboratory that will provide social and behavioral scientists with the databases, software and hardware tools, and other resources to conduct worldwide research that integrates experimental, survey, geographic, and economic methodologies on a much larger scale than was possible previously. This facility will enable advanced research and professional education in economics, sociology, political science, social geography, and related fields. In many branches of social sciences, a new emphasis on the rigor of formal laboratory experimentation has driven researchers to develop procedure and software to conduct online interaction experiment using computer terminals attached to local area networks. The opportunity to open these laboratories to the Internet will reduce the cost per research participant and increase greatly the number of institutions, researchers, students, and research participants who can take part. The scale of social sciences experimentation can increase by an order of magnitude or more, examining a much wider range of phenomena and ensuring great confidence in results through multiple replication of crucial studies. Technology for administering questionnaires to very large numbers of respondents over the Internet will revolutionize survey research. Data from past questionnaire surveys can be the springboard for new surveys with vastly larger numbers of respondents at lower cost than by traditional methods. Integrated researches can combine modules using both questionnaire and experimental methods.Results can be linked via geographic analysis to other sources of data including census information, economic statistics, and data from other experiments and surveys. Longitudinal studies will conduct time-series comparisons across data sets to chart social and economic trends. Each new study will be designed so that the data automatically and instantly becomes part of the archives, and scientific publications will be linked to the data sets on which they are based so that the network becomes a universal knowledge system.A 'phase change' (Para. 1) is one in whichA．an old period ends and a new period begins.B．a gradual invisible transition takes place.C．fragments are united into a whole.D．social sciences come to be united with physical sciences.
A.ResultsB.AC.anD.B．aE.C．fragmentsF.D．socialG.
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接收旅客时系统显示FLIGHT CLOSED，说明（）。
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我国企业普遍使用的人事任用方式不包括（）。
A．选任制
B．继任制
C．委任制
D．聘任制
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如何正确对待艾滋病感染者、艾滋病病人以及他们的亲友？
A . A、闻“艾”色变，远离艾滋病患者
B . B、不与艾滋病患者同桌吃饭、共同办公；不使用艾滋病人用过的马桶
C . C、关爱艾滋病感染者及艾滋病患者，与他们进行亲切交谈、握手、共同进餐等日常接触；为他们的亲友提供有关艾滋病的护理和防治知识
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A .
牛奶的酸度是衡量牛奶质量的一项重要指标。测定牛奶的酸度可检查牛奶的新鲜度。B .
刚挤出的新鲜乳的酸度称固有酸度或自然酸度。C .
牛乳的酸度用滴定酸度或乳酸百分率来表示。D .
正常新鲜牛乳的pH为6.5～6.7。E .
一般酸败乳或初乳的pH在6.8以上。
正常情况下，突然出现成品干料或成品稀料情况原因分析及解决方案
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编挂货物列车回送时，回送客车的三捆绑工作由押运人员负责。
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．Medical payments to all others in that regionB．Private propertyC．DwellingD．All other perils such as wind and hail
A.Medical
B.Private
C.Dwelling
D．All
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港内吊拖时，被拖船拖缆出口至水面距离为12m，一般情况下拖缆长度：（）.
A.应大于48m
B.应大于58m
C.应大于68m
D.应大于78m
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若含有105个氨基酸残基的多肽链充分伸展呈线形，则长度为（）
A.15.75nmB.37.80nmC.25.75nmD.30.50nmE.12.50nm
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NPN型晶体管共基极应用时，当增大反向偏置PN结电压时，其直流输入特性曲线（）。
A.向左移动B.向右移动C.基本不变D.与正向偏置PN结电压有关
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