更多“一般弧光放电过度电阻随拉弧时间延长而变小”相关的问题
开立存款证明一次可选定（）个账户（含凭证式国债），这些账户可以属于同一户口，也可以来自不同的户口，开证金额可在不超过客户存款金额的范围内输入。
A.1
B.5
C.10
D.无限制
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在ASCII码中下列大小关系（）是正确的。
A . A、空格>’a’>’A’
B . B、空格<’9’<’A’<’a’
C . C、’B’>’b’>’8’
D . D、都不对
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一台域中的服务器上有用户账户test1，该用户账户对文件夹USER具有完全控制权限，该文件夹为FTP站点
A.只读B.写入C.完全控制D.不明确
B.写入C.完全控制D.不明确
C.完全控制D.不明确
D.不明确
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患者男性,12岁。两天前受凉后出现咽干、咽痛、鼻塞、流涕、干咳、头痛,轻微畏寒。查体:T 37.1°C,咽红,扁桃体无肿大。两肺呼吸音轻,未闻及干湿啰音。患者可能的诊断是
A. 普通感冒 B. 急性病毒性咽炎 C. 急性病毒性喉炎 D. 急性病毒性支气管炎 E. 急性支气管炎
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时间作为一种客观现象，其本身在沟通中具备特殊的含义。
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（)属于铁路运输收入。
A.客运收入
B.货运收入
C.代收款
D.建设基金
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《钢轨探伤管理规则》规定，对新焊焊缝的探伤轨温应冷却至50℃以下或自然轨温。
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听力原文： Started in 1636, Harvard University is the oldest of all the colleges and universities in the United States. Yale, Princeton, and Dartmouth were opened soon after Harvard. They were all started before the American Revolution made the thirteen colonies into states. In the early years, these schools were much alike. Only young men attended college. All the students studied the same subjects and everyone learned Latin and Greek. Little was known about science then, and one kind of school could teach everything that was known about the world. When the students graduated, most of them became ministers or teachers. In 1782, Harvard started a medical school for young men who wanted to become doctors. Later, lawyers could receive their training in Harvard Law School. In 1825, Harvard began teaching modem languages, such as French and German, as well as Latin and Greek. Soon it began teaching American history. As knowledge increased, Harvard and other colleges began to teach many new subjects. Students were allowed to choose the subjects that interested them. Special colleges for women were started. New state universities began to teach such subjects as farming, engineering and business. Today, there are many different kinds of colleges and universities. Most of them are divided into smaller schools that deal with special fields of learning. There is so much to learn that one kind of school cannot offer it all.(30)A．How to start a university.B．How colleges have changed in America.C．The American Revolution.D．The world famous colleges in America.
A.B.C.D.E.(30)A．HowF.B．HowG.C．TheH.D．TheI.
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《世说新语》中“身无长物”的故事展现的魏晋时代的审美情趣和精神是（）
A、轻视外物
B、向往自由
C、冷静坦荡
D、狂放不羁
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某芳香醛A，与丙酮在碱中缩合得B（C11H12O2），B与异丙醇铝在异丙醇中反应得C，B用碘和K2CO3处理得到D（C10H10O3）。C和D都可以被KMnO4处理得到E（CSHSO3），E用HI（浓）处理得到在水蒸气中易挥发的另一酸F。请写出A、B、C、D、E的结构式。
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空压机曲轴轴颈对中心线的跳动不大于（）毫米。
A.0.01
B.0.02
C.0.03
D.0.04
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饭店开展绿色营销的原则主要有()。
A．再使用
B．再循环
C．减量化
D．减质化
E．找替代
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我国各级基本医疗保险经办机构，其行政上隶属于（）
A . A.民政部门
B . B.卫生行政部门
C . C.劳动保障部门
D . D.各级人民政府
E . E.社会组织
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正态分布有两个参数μ与σ,( )越大,相应的正态曲线的形状越扁平。
A. μ越大 B. μ越小 C. σ越大 D. σ越小
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用地指标是确定用地规模的依据，也是审核用地面积的尺度。在没有具体设计方案时，通过用地指标计算确定用地面积，当有设计方案时，（）。
A.通过用地指标分折控制用地面积
B.通过用地指标宏观控制用地面积
C.通过用地指标核对控制用地面积
D.通过用地指标研究控制用地面积
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