化疗静脉注射用药出现疼痛()
A.仅发生于药物渗漏出血管时
B.可能由于引起血管痉挛所致
C.继续注射,以减少疼痛发生率
D.勿用止痛药
E.给予吗啡预防性止痛治疗
参考答案:B
补体结合试验结果阴性时出现( )
A.血凝B.血凝抑制C.溶血D.不溶血E.以上都不是
The Customs shall reply in writing within ______ from the date of receipt of the application for the refund of the duty paid and notify the applicant of its decision.
A.one month B.two monthsC.three monthsD.six months