出现全脊髓麻醉时的处理要点是()
A.静脉注射呼吸兴奋剂
B.经鼻管给氧吸入
C.静脉注射镇痛镇静剂
D.快速输液补充血容量
E.立即人工呼吸与支持循环
参考答案:E
He knows China very well. That is, he has _____ good understanding of _____ Chinese history. [ ]
A. /; the
B. /; /
C. a; a
D. a; /
正常胎儿血循环中血氧含量最高的部位是()
A.主动脉
B.肺动脉
C.左心房
D.脐静脉
E.脐动脉