更多“螺杆式空气空压机将基本取代滑片式空气空压机，并且加大排渣风量”相关的问题
异步电机的定子绕组通入三相交流电后,此电流产生的旋转磁场 ,将在转子上形成 转子电流。
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下列关于车辆购置税申报与缴纳的说法，正确的是（ ）。[2011年真题]
A.车辆购置税的征税环节是使用环节（即最终消费环节） B.购买已缴纳车辆购置税的旧机动车自用也要缴纳车辆购置税 C.车辆购置税的纳税地点是销售应税车辆的4S店所在地 D.免税车辆不需要办理车辆购置税申报手续
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PowerPoint中下面哪一项操作不能用“插入”菜单下的命令实现（）。
A.插入图片
B.插入文本框
C.插入背景
D.插入艺术字
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下列属于个人安全与社会责任培训的内容是（）
A . MARPOL公约的基本要求
B . 安全作业方法
C . 船舶稳性及货物配载
D . 船上人际关系
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你的一个同事Q某总是喋喋不休地在你耳边讲X的坏话，而据你观察，X并不像Q某所描述的那样坏，你会（）。
A．暂时相信Q某的话，对X进行仔细观察
B．相信自己的判断，不会相信Q某的话
C．给Q某讲清楚这样做的危害
D．远离Q某，同时对X保持警惕
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从长期来看，在完全竞争的市场中，企业的经济利润为零。
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位于面部，目外眦旁1cm处的穴位为（）
A.四白
B.瞳子髎
C.承泣
D.睛明
E.丝竹空
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It is hardly surprising that something called dark energy is hard to study. It is important, though. If it exists at all, it makes up about three-quarters of the stuff in the universe. And if it does not exist, then existing theories of physics will have to be useless. The latest evidence that dark energy really does exist was produced on December 16th by Alexey Vikhlinin, of the Smithsonian Observatory in Cambridge, Massachusetts, and his colleagues. They used an orbiting X-ray telescope called Chandra to study the way that groups of galaxies grow. They discovered that this growth is restrained in exactly the way that dark-energy theory predicts. The idea of dark energy was dreamed up ten years ago, to explain why the expansion of the universe that began with the Big Bang seems to be accelerating, rather than slowing down. That unexpected finding was the result of studies of supernovas (超新星) whose apparent brightness (and therefore distance) did not match the previous theory. Dark energy causes the acceleration by pushing space itself apart, altering the distances to the supernovas as it does so. Dark energy is also a convenient explanation for another curiosity. Geometrically, space is flat. For it to be held that way, rather than getting more and more curved over time, the amount of matter and energy it contains must be at a particular, critical density. Without the dark energy needed to explain the acceleration, the universe would have only a quarter of the necessary density. It is therefore a relief that Dr Vikhlinin’s results agree with the theory: the pushing apart of space that dark energy causes makes it harder than it otherwise would be for galactic clusters(银河星团) to grow. This result does not bring physicists much closer to understanding what dark energy actually is. The favored explanation is the so-called universal constant -- an as-yet-unobserved consequence of the general theory of relativity. But that theory predicts a force far more powerful than the one actually seen. So the truth is that physicists are still in the dark.
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鞠躬礼源于日本、韩国、朝鲜等东亚国家。（）
A . 正确
B . 错误
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通过加壳可以实现下列目的（）。
A.版权保护
B.逃避检测
C.压缩
D.远程控制
E.提升权限
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司机黄某酒后驾车，被公安机关处以15日拘留产吊销驾驶执照的行政处罚。黄某不服，向上级公安机关申请复议，复议机关决定维持，黄某在收到复议决定通知5日内即提起行政诉讼。在黄某提起的行政诉讼中，有管辖权的法院为（）。
A．原公安机关所在地的基层人民法院
B．上级公安机关所在地的基层人民法院
C．黄某居住地的基层人民法院
D．黄某户籍所在地的基层人民法院
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病人，女性，45岁。因风湿性心脏病住院治疗。入院后查体心功能三级。在一次输液过程中，病人擅自将滴速调至80滴/分，输液进行20分钟以后，病人出现呼吸困难，咳嗽、咳粉红色泡沫痰。给氧时，护士应选择的吸氧流量是
A . 1～2L/minB . 3～4L/minC . 5～6L/minD . 6～8L/minE . 9～10L/min
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为了防止作业人员过度疲劳，应在连续工作（）后，应有不少于10min的体息时间。
A . 2h
B . 1h
C . 3h
D . 4h
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工程项目后评价应对项目投资建设全过程、各个阶段进行回顾与总结，其中建设实施阶段总结与评价的内容主要有______等。
A.项目勘察设计总结评价
B.项目投资融资方案评价
C.招投标工作评价
D.合同执行评价
E.工程实施及管理评价
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题目内容
（请给出正确答案）
参考答案
十点题库官方参考答案
（由十点题库聘请的专业题库老师提供的解答）
