更多“某套管换热器由Ø108×4mm和Ø”相关的问题
最易发生嵌顿的腹外疝是( )。【历年考试真题】
A.腹股沟斜疝
B.腹股沟直疝
C.脐疝
D.股疝
E.切口疝
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如图3-167所示结构受均布荷载作用,以下内力图和变形图错误的是:
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According to the passage, Houston aimed his leg-islative challenge at the graduate and professional school level on the basis of the assumption that
A. the greatest inequities existed at the highest academic and professional levels
B. the separate-but-equal doctrine applied solely to the highest academic levels
C. there were clear precedents for reform in existence at the graduate school level
D. the judiciary would feel less apprehension at desegregation on the graduate level
E. the consequences of desegregation would become immediately apparent at the graduate school level
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集中解送重要空白凭证时,调出方应坚持双人清点、装箱、加锁。
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An administrator has a Power 570 in default configuration with a 4 port 1 Gbps Integrated Virtual Ethernet (IVE) adapter. A new application requires that the MCS value for the first port group of the IVE adapter be set to 1. If this change is made what is the maximum number of logical ports, across both port groups, that the IVE adapter can provide? ()
A.4 B.16 C.20 D.32
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()绿篱有利于地基部侧枝的生长和发育,不会因得不到光照而枯死稀疏。
A、矩形
B、梯形
C、圆顶形
D、自然式
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智力是( )。A.生活最基本的条件B.心理健康的重要标准C.反映人所有综合能力的值D.以上均正确
智力是( )。 A.生活最基本的条件 B.心理健康的重要标准 C.反映人所有综合能力的值 D.以上均正确
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ZD6型电动转辙机摩擦连接器的摩擦带,与内齿轮伸出端接触面不小于摩擦带表面的()
A.4/5
B.3/5
C.3/4
D.1/3
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对矿用一般型电气设备的基本要求,是外壳坚固、封闭,能防止从外部直接触及带电部分。
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单选题 ( 1.0 分 )
我国的政党制度是()。
A . 共产党执政的一党制B . 共产党和民主党派共同执政的多党制C . 共产党领导的多党合作和政治协商制度D . 共产党和在野党轮流执政的两党制
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培训项目管理人员不用关注和管理培训课堂秩序,课堂秩序的管理应由培训师负责。
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以下各题使用如下三个数据库表: 学生表:student(学号,姓名,性别,出生日期,院系) 课程表:course(课程号,课程名,学时) 选课成绩表:score(学号,课程号,成绩) ...查询选修课程在5门以上(含5门)的学生的学号、姓名和平均成绩,并按平均成绩降序排序,正确的命令是 。
A.SELECT s.学号,姓名,平均成绩FROM student s,score sc WHERE s.学号=sc.学号 GROUP BY s.学号HAVING COUNT(*)>=5 ORDER BY平均成绩DESC
B.SELECT s.学号,姓名,AVG(成绩)FROM student s,score sc WHERE s.学号=sc.学号AND COUNT(*)>=5 GROUP BY学号ORDER BY 3 DESC
C.SELECT s.学号,姓名,AVG(成绩)平均成绩FROM student s,score sc WHERE s.学号=sc.学号AND COUNT(*)>=5 GROUP BY s.学号ORDER BY平均成绩DESC
D.SELECT s.学号,姓名,AVG(成绩)平均成绩FROM student s,score sc WHERE s.学号=sc.学号 GROUP BY s.学号HAVING COUNT(*)>=5 ORDER BY 3 DESC
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