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问题描述：

[单选] 非平头式水平变幅塔式起重机起重臂及塔顶部件中，单个轴孔或销轴的报废标准包括：单个轴孔或销轴磨损及变形相对值大于（）或绝对值大于 1．5mm。
A．1% B．2% C．4% D．10%
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答案解析：无
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上一篇：平头式水平变幅塔式起重机起重臂及塔顶部件中，单个轴孔或销轴的报废标准包括( )单个轴孔或销轴磨损及变形相对值大于（）或绝对值大于 1．2mm。 下一篇：水平变幅塔式起重机的起重臂腹杆报废标准包括( )结构变形比值（结构杆件轴线偏离中心线的最大值与杆件长度的比值）大于（）。

随机题目

器械台、仪器车、污物车清洁与消毒频次
中度环境污染风险区域
抹布区分使用正确的是：
Directions: After reading the following passage， you will find 5 questions or unfinished statements， numbered 36 to 40． For each question or statement， there are 4 choices marked A）， B）， C） and D）． You should make the correct choice and mark the corresponding letter on the Answer Sheet with a single line through the center．Most of our working hours are spent in the workplace． So what we do during those hours can have a significant impact on our overall health． A positive wellness culture during the workday can contribute to better health- physical， mental， and emotional well-being（良好的状态） for you and your co-workers Healthy people are more productive， more constructive and require fewer sick days and health associated costs． Both employers and employees can promote a healthier work environment． Don’t let your work environment affect your health for eight hours of the day． Break up your work day． Get up， stretch， and move． Regular movement throughout the day will keep your mind and body flexible and help avoid fatigue（疲劳 ）． Think of ways you can add movement or at least decrease the amount of time you are sitting． Try getting out of your chair more， standing during your calls， or alternating your chair with a yoga （瑜伽）ball ． And if you have to drive to work， try parking at the far end of the lot， taking the stairs， and going the long way to the bathroom and break room．Healthy employees work better． As an employer you can initiate and encourage healthy changes at your workplace to create the best environment to promote mental and physical health for your employees．36． According to the passage， a positive wellness culture can help to ． *
输液过程中液体滴入不畅，护士挤捏输液管有回血，局部无肿胀，触摸手臂发现病人输液肢体较冷。该病人液体滴入不畅的原因可能是（）
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