盐酸普鲁卡因注射液中应检查()
A.间氨基酚
B.对氯乙酰苯胺
C.对氨基苯甲酸
D.对氨基酚
参考答案:C
外鼻静脉的特点中,下列哪项是错的()
A.动脉血经毛细血管直接达静脉窦
B.静脉腔较大
C.静脉无瓣膜
D.静脉回流直接注入颈内静脉
E.静脉较多
Many of them turned a deaf ear to his advice, ________ they knew it to be valuable.
A.as if
B.now that
C.even though
D.so that