触电的危险性与那些因素无关()。
A、通过人身电流的大小
B、触电时间的长短
C、电流经人体的途径
D、天气情况
参考答案:D
In caring for a client with vasovagal syncope, the nurse should know that the associated temporary loss of consciousness is most commonly related to()
A. vestibular dysfunction.
B. sudden vascular fluid shifting.
C. postural hypotension.
D. bradyrhythmia.
双层底的作用是:()
①、增加总纵强度;②、增加船底局部强度;③、调整船舶吃水;④、改善航行性能;⑤、提高抗沉性
A.①~⑤
B.②~⑤
C.①、②、④、⑤
D.①~④