复合先露对母儿造成的影响包括()
A.梗阻性难产
B.脐带脱垂
C.原发性宫缩乏力
D.胎儿窘迫
E.滞产
参考答案:A, B, D, E
--Would you mind opening the window? It's too hot.
--
A.Sorry. I wouldn't
B.No, of course not
C.It doesn't matter
D.Yes, please.
小王在家换灯泡时,不小心碰到火线触电了,这是属于哪种触电方式()。
A、两线触电
B、单线触电
C、接触电压触电
D、间接触电