更多“改造也属于计划预防维修。”相关的问题
标准直齿圆柱齿轮,其模数m=2mm,则齿距P、基圆齿距Pb、齿厚S、齿槽宽e分别是( )。
A . π,1.88π,2π,2πB . π,2π,π,2πC . 2π,1.88π,π,πD . 2π,2π,π,π
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建设工程项目实施阶段策划是在建设项目立项之后，为了把项目决策付诸实施而形成的（）的项目实施方案。
\tA．实施性
\tB．纲领性
\tC．指导性
\tD．操作性
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民用建筑工程室内空气中苯的检测时，吸附管活化时间不少于10min，活化至无杂质峰。
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单个酸性蓄电池充足电的标志是：电压达（），电解液比重达（）。
\tA．6V／1.3
\tB．3V／2.5
\tC．2.0／1.5
\tD．2.5V／1.3
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下列关于隐私的描述，不正确的是（）
A、隐私是一个人不容许他人随意侵入的领域
B、一个人的身体与他人保持一定的距离
C、他人不得播散的私人信息
D、任何人都有一定范围的领域不容许别人侵入
E、一个人的身体不能被人观察
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完善税收制度，在全国范围内实现( )由生产型转为消费型。
A．个人所得税
B．教育税
C．增值税
D．城市建设税
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能敛阴和营止汗的药物是____
A．牡蛎
B．白术
C．黄芪
D．白芍
E．麻黄根
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Pool Watch Swimmers can drown in busy swimming pools when lifeguards fail to notice that they are in trouble. The Royal Society for the Prevention of Accidents says that on average 15 people drown in British pools each year, but many more suffer major injury after getting into difficulties. Now a French company has developed an artificial intelligence system called Poseidon that sounds the alarm when it sees someone in danger of drowning. When a swimmer sinks towards the bottom of the pool, the new system sends an alarm signal to a poolside monitoring station and a lifeguard’s pager. In trials at a pool in Ancenis, near Nantes, it saved a life within just a few months, says Alistair McQuade, a spokesman for its maker, Poseidon Technologies. Poseidon keeps watch through a network of underwater and overheard video cameras. AI software analyses the images to work out swimmers trajectories. To do this reliably, it has to tell the difference between a swimmer and the shadow of someone being cast onto the bottom or side of the pool. "The underwater environment is a very dynamic one, with many shadows and reflections dancing around," says McQuade. The software does this by "projecting" a shape in its field of view onto an image of the far wall of the pool. It does the same with an image from another camera viewing the shape from a different angle. If the two projections are in the same position, the shape is identified as a shadow and is ignored. But if they are different, the shape is a swimmer and so the system follows its trajectory. To pick out potential drowning victims, anyone in the water who starts to descend slowly is added to the software’s "pre-alert" list, says McQuade. Swimmers who then stay immobile on the pool bottom for 5 seconds or more are considered in danger of drowning. Poseidon double-checks that the image really is of a swimmer, not a shadow, by seeing whether it obscures the pool’s floor texture when viewed from overhead. If so, it alerts the lifeguard, showing the swimmer’s location on a poolside screen. The first full-scale Poseidon system will be officially opened next week at a pool in High Wycombe, Buckinghamshire. One man who is impressed with the idea is Trevor Baylis, inventor of the clockwork radio. Baylis runs a company that installs swimming pools, and he was once an underwater escapologist with a circus. "I say full marks to them if this works and can save lives," he says. But he adds that any local authority spending ￡30,000-plus on a Poseidon system ought to be investing similar amounts in teaching children to swim.
A. an image B. an idea C. anyone in the water D. artificial intelligence
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关于休克的护理下列哪项不妥（）。
A.平卧位 B.常规吸氧 C.用热水袋保暖 D.观察每小时尿量 E.每15分钟测血压脉搏1次
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（）如果有大量计算机需要频繁的分析，则可利用哪个命令工具进行批处理分析？
A、dumpel
B、showpriv
C、Secedit.exe
D、gpolmig.exe
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从热力学观点来看，要使得两种液体能够自发的发生混合，那么必须使混合自由能为正值。
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截止2010年，我国累计注册商标多少万件？有效注册商标多少件？均为世界第几？
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适用于地下防水工程，或作为防腐材料的沥青材料是哪一种沥青？（）
A . 石油沥青
B . 煤沥青
C . 天然沥青
D . 建筑石油沥青
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太平天国的结婚证书叫（）。
A.合挥
B.聘书
C.婚约
D.合约
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