安全“三不生产”指的是哪些?
参考答案:
(1)不安全不生产;(2)隐患不处理不生产;(3)措施不落实不生产。
— Why did you go back upstairs?
— I thought I had left the window ______. [ ]
A. open
B. opened
C. being opened
D. to be opened
下列不属于骨折并发症的是()
A.血管损伤
B.神经损伤
C.损伤性骨化
D.迟发性畸形
E.骨性关节炎