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皮带机皮带打滑的原因是()
“他看到了简单的规则,并从中揭示出循环往复的规律,所以启发我们继续探索,希望用数学法则来揭示经济的周期和人类的行为。我们相信,宇宙中的问题是可以解决的。”材料中“他”()。
静电事故预防有以下()方式。
王某,28岁,经产妇,妊娠37周,以“阴道无痛性多量流血5小时”为主诉急诊入院。查体示:血压80/60mmHg,脉搏110次/分。无宫缩,宫底在剑突下2横指,臀先露,胎心率90次/分,骨盆外测量正常。以下哪项对预防本病的发生,最有意义
王某潜入某局的财务室盗窃财物,打开保险箱后,柜中空无分文。王某的行为是盗窃( )。
下列不属于组织发展内部动力因素的是()
重复接地能进一步降低漏电设备外壳的对地电压。
西安地铁1号线车辆基础制动单元采用的是盘式制动方式。
回送机车乘务员无权使用车站运转室、站调、机务(折返)段调度室的电话设备。
旅游团在景点游览时若遇到小贩对旅游者强拉强卖的情况,地陪应立即( )。
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