更多“若冷、热流体的平均温差超过70℃，则适宜采用下列哪种管壳式换”相关的问题
在保持其他条件不变的情况下，下述( )情况将使得某类劳动需求曲线具有很高的劳动需求的工资弹性。
A. 劳动投入与其他生产要素之间的可替代性越大B. 对利用该类劳动要素所生产的最终产品的需求弹性越大C. 其他生产要素的供给弹性越大D. 该类劳动成本占总生产成本的比重越大
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党的十九大报告指出:伟大斗争、伟大工程、伟大事业、伟大梦想紧密联系,相互贯通、相互作用,其中伟大的工程指的是( )。
A. 全面小康B. 依法治国C. 党的建设D. 实现社会主义现代化
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判断出生新生儿有无窒息以及窒息的严重程度应选择生后（）。
A.1分钟评分 B.3分钟评分 C.2分钟评分 D.5分钟评分 E.10分钟评分
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合同法规定，属于不得撤销的要约的情况有（）
A . A.要约人确定了承诺期限
B . B.要约已经到达受要约人
C . C.要约人明示要约不可撤销
D . D.受要约人有理由认为要约是不可撤销的，并已经为履行合同做了准备工作
E . E.要约已经发生法律效力
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女性35岁，心悸，四肢冰凉，发作时血压达30/20kPa，尿VMA升高，最可能的诊断是
A.原发性高血压
B.嗜铬细胞瘤
C.皮质醇症
D.醛固酮症
E.垂体腺瘤
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试述大肠杆菌乳糖操纵子的结构及其基因表达的调节特点。
（16.0分）
双积分式A/D转换器的转换结果与时间常数RC有关。（）
A . 正确
B . 错误
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因下列原因之一造成事故，单位主要负责人负主要责任。（）
A.发布违反有关安全生产法令法规和规章制度的命令，违章指挥
B.无视上级主管部门和地方安监部门的警告，未及时消除事故隐患
C.安全生产管理机构和规章制度不健全，管理混乱
D.未认真吸取教训，未及时采取有效措施，使同类事故重复发生
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TEXT A The Metropolitan Police will no longer describe black people as black, as part of a new attempt to counter charges of racism in the force. Both black and Asian people will in future be referred to as "visible minority ethnics". The term, which replaces the phrase "black and Asian minority ethnics" is expected to be adopted officially in January. The decision was criticized yesterday as unnecessary and confusing by black police officers. Anna Scott, the general secretary of the National Black Police Association, said it amounted to a step too far by the "political correctness" movement. "We have gone from saying ’black ethnic minority’ to ’black minority ethnic’ to ’visible minority ethnic’ in a matter of years," she said. "There has been so much emphasis on the issue of terminology, that the issue has become confusing for black police officers, let alone white ones. We are risking becoming too politically correct at the expense of being clearly understood by officers and the general public." A senior police official told The Telegraph that some white officers were using the phrase so that they would avoid saying the words "black" or "Asian", for fear of causing offence. The official claimed that the term would allow these communities to be distinguished for others—such as the Irish and the Greeks—whose members are, according to the new terminology, "invisible" because they tend to be light-skinned. In the 1960s, the phrase "colored" was officially used by some police forces. By the 1970s, this had changed to "black" to describe people whose ancestors originated from the Caribbean and Africa and "Asian" for those who originated from the Indian subcontinent. The phrase "ethnic minority" was also widely used as a collective term for both groups, but this was dropped in favor of "minority ethnic" five years ago, promising criticism that it was an improper use of English. Bernard Lamb, the chairman of the London branch of the Queen’s English Society, said that the new description was grammatically incorrect and over-sensitive. "I do not like this new term at all. The word ’ethnic’ is an adjective and you cannot pluralize an adjective," he said. "They seem to have used a euphemism for black and Asian when I imagine most black and Asian people do not mind the empty words themselves at all." The change will cost a significant sum of public money in retraining officers and rewriting manuals and a spokesman for the Metropolitan Police said that some senior officers were already using the term. The spokesman said that the new term was not a redefinition but was meant to standardize the phraseology used by the police. "Concerns have been raised about the nature and range of terms used in papers presented to the authority when discussing ethnicity." "To ensure that there is a uniform approach and understanding of terminology used in future, and that offence is avoided, the January meeting of the authority’s equal opportunities and diversity board will make decisions about the terminology we expect to use," he said.
A．criticalB．objectiveC．indifferentD．sarcastic
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据国家统计局统计，2005年我国GDP达到18、23万亿元，GDP由2004年世界排名第六位上升到第四位。但是人均GDP1703美元，依然位于世界100位以后。产生这种巨大反差的根本原因是（）
A.我国进行了改革开放 B.我国人民生活水平比较低 C.我国还处于社会主义初级阶段 D.我国人口数量多
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健康教育处方属于以下哪种健康教育材料形式( )。
A．医嘱B．咨询C．口头教育D．书面E．辅助
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材料1853年12月24日，咸丰发“著即发行宝钞”的上谕，称：“比年以来，银价日昂，民生愈困。小民输纳税课，每苦于银贵，而转运制钱又多未便一朕……酌古准今，定为官票宝钞，以济银钱之不足，务使天下通行
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健胸按摩能使乳房增大，是因为（）。
A.能加强乳房神经活动
B.能促进乳腺和滤泡发育
C.物理刺激增大胸大肌
D.增加雌激素分泌
E.增加雄激素分泌
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有一块0.25级精密表，测量范围（0～16）MPa，现在29℃环境使用，该表误差是（）
A . ±0.04MPa
B . ±0.4MPa
C . ±0.085MPa
D . ±0.85MPa
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项目监理机构对进场工程原材料外观质量进行检查的主要内容有（）。
A.外观尺寸
B.规格
C.型号
D.产品标志
E.工艺性能
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