鱼能被它们喜欢的声音吸引,这表明_____也能传声,“土电话”利用了__________性质
液体,固体能够传声
成人患者,车祸伤腹腔内出血,失血量约700ml,烦躁,面色苍白,皮肤湿冷,BP110/93mmHg,脉搏100次/分。
可采取的扩容措施最好为()
A.全血
B.血浆
C.平衡液
D.右旋糖酐
E.葡萄糖盐水
On-scene communications will normally take place between().
A.ship in distress and assisting units
B.NCS and RCC
C.RCCs and “on-scene commander” or “coordinator surface search”
D.ship in distress and coast station