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单项选择题
型轴承的原始轴向间隙值为()
A.0.075~0.5mm
B.0.5~0.6mm
C.0.6~0.7mm
D.0.7~0.8mm
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进入二氧化碳风险区域,CO2报警器响起时执行应急响应程序,立刻撤离现场()
A.正确
B.错误
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厂、段修货车车辆落成调钩高时,允许在下心盘底面加装竹质垫板的厚度为。(原高级)()
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B.15~40mm
C.20~30mm
D.20~40mm
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Which of the following is not the benefits of the police organs engaging in social media:
A、foster image of the police organs
B、make policing announcement
C、create the sense of security
D、affect the sentence of cases
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