重度脱水的表现特点()
A.心音低钝,血压下降,四肢厥冷
B.哭时泪少,尿量明显减少
C.皮肤、口唇粘膜稍干燥
D.失水量为体重的5%~10%
E.皮肤弹性尚可
参考答案:A
二次回路图纸一般分为()、()和()。
Changing rescuers while carrying out artificial respiration should be done().
A.without losing the rhythm of respiration
B.only with the help of two other people
C.by not stopping the respiration for more than 5 minutes
D.at ten-minute intervals