Ⅲ期临床试验是为了()。
A.发现新的适应证
B.确定最大耐受剂量
C.确定不同患者人群的剂量方案
D.确定最小耐受剂量
E.观察普通人群中使用的受益一风险比
参考答案:C
when the dispute over duty payment arises between the duty payer and the Customs, the duty payer should first pay the duty and then, within ______ days of the issuance of the duty memo, apply to the Customs in writing for a reconsidertation of the case.
A.10 daysB.20 daysC.30 daysD.50 days
()有限流作用。
A.负温度系数热敏电阻
B.功率热敏电阻
C.临界温度系数热敏电阻
D.正温度系数热敏电阻