更多“危险源会在()因素作用下转化为危险状态,进而转化为事故。”相关的问题
读下图,(阴影部分为夜半球)回答相关问题。 A点所在地的经度位置是(),纬度位置是(),A点这一天正午太阳高度是(),图中A此时点是()时。
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引起齿轮工作得不平稳,齿轮发生冲撞,并且轮齿上产生附加载荷的原因有哪些?应当怎样消除?
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Passage Three Sometimes it’s just hard to choose. You’re in a restaurant and the waiter ...From Barry Schwartz’s book, The Paradox of Choice, we can get recommendation tips on ().
A.how to handle the situation of capitalist exploitation
B.how to deal with your expense budget
C.how to avoid the feeling of missed opportunities
D.how to save money by making a right choice
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不同的机械设备,对基础混凝土的()也不同,为保证机器安全运转及机器使用寿命,混凝土标号可以比选取的标号提高一个等级。
A . 配比要求
B . 混凝土标号要求
C . 吸收振动的能力
D . 强度要求
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观察骨肿瘤的影像图片时应注意()
A.发病部位
B.病变数目
C.骨质改变
D.骨膜反应
E.软组织变化
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( )是生产系统的两个支柱。
A.商务活动
B.内部管理
C.加工活动
D.物流活动
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Questions 11 -13 are based on the following passage. You now have 15 seconds to read que...In the market-oriented economic system, ______.
A.consumers spend their money at will
B.consumers spend their money in accordance with producers’ desire
C.consumers’ actions in the marketplace have nothing to do with the businessmen
D.consumer’s actions affect production greatly
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一台电动机检修回装后转子转动不灵活,可能原因有()
A . 转轴前后端装倒
B . 端盖或轴承盖的位置不对
C . 转轴与轴承间或轴承与端盖间相对位置不对
D . 端盖与定子的合缝处有污物
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女性生殖器恶性肿瘤中死亡率最高的是( )
A.宫颈癌
B.子宫内膜癌
C.外阴癌
D.卵巢癌
E.原发性输卵管癌
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根据账户记录编制试算平衡表以后,如果所有账户的借方发生额同所有账户的贷方发生额相等,则说明账簿记录一定是正确的。
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A . 冈上肌腱、冈下肌腱、斜方肌腱、小圆肌腱B . 冈上肌腱、冈下肌腱、肩胛下肌腱、大圆肌腱C . 冈上肌腱、冈下肌腱、肱二头肌腱、肩胛下肌腱D . 冈上肌腱、冈下肌腱、肩胛下肌腱、小圆肌腱
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TEXT C Vibrations in the ground are a poorly understood but probably widespread means of...According to researchers in the Chicago symposium,
A.biologists have properly realized the common existence of seismic signaling.
B.seismic signaling is a means of communication that has been comprehensively studied.
C.seismic signaling can show many mysterious features of animal behavior.
D.the research approach has led to the fruitful research into seismic signaling.
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A . 0.1~0.3VB . 0.4~0.5VC . 0.6~0.8VD . 0.9~1.0V
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火箭由静止状态加速到 照静止系的时钟和按火箭内的时钟加速火箭各需要多少时间
火箭由静止状态加速到
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单线半自动闭塞区段,相邻两站已办妥闭塞手续,发车站未开放出站信号,需取消闭塞时,发车站拉出闭塞按钮(或按下复原按钮),发车表示灯变为( )。
A. 红灯B. 黄灯C. 绿灯D. 灭灯
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