在变电站内使用起重机械时,应安装接地装置,接地线应用多股软铜线,其截面应满足接地短路 发布时间:2018-02-04 18:26 │ 来源:www.tikuol.com 题型:单项选择题 问题: 在变电站内使用起重机械时,应安装接地装置,接地线应用多股软铜线,其截面应满足接地短路容量的要求,但不得小于()mm2。A.25.0B.16.0C.10.0D.35.0
题型:单项选择题 A conscious victim who has suffered a blow to the head has symptoms that indicate the possibility of concussion. If the patient feels no indication of neck or spine injury,recommended treatment would include().A.turning the victim's head to the side to keep his airway openB.positioning the victim so the head is lower than the bodyC.giving the victim water if he is thirsty,but no foodD.elevating the head and shoulders slightly with a pillow 查看答案