下列哪项是目前最适合肿瘤患者静脉通路的方式()
A.头皮静脉
B.锁骨下静脉
C.外周穿刺中心静脉置管
D.头静脉
参考答案:C
______as animals, the children came on the stage and started to perform.
A.Worn
B.Wearing
C.Dressed
D.Dressed in
转子流量计的测量原理是什么?