题目：
在阿司匹林含量测定中，两步滴定法（）
A.主要用于原料药的测定
B.主要用于片剂的测定
C.第一步滴定的目的是中和阿司匹林的分解产物或制剂中的稳定剂
D.A+C
E.B+C
答案：
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参考答案：A
在阿司匹林含量测定中，两步滴定法（） A.主要用于原料药的测定 B.主要用于片剂的测
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