题目内容

在进行动物离体子宫实验时，如未出现收缩曲线的描记，应考虑哪些可能的因素?

A. 标本制备的活性、标本离体后的环境
B. 标本与相关仪器（或实验器材）连接是否正确
C. 实验者操作是否正确
D. 仪器是否发生故障
E. 药品的配制

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