问题
单项选择题 A1/A2型题
下列属于显影剂的是（）
A.菲尼酮
B.溴化银
C.硫化钠
D.碳酸钾
E.钨酸钙
答案
参考答案：A
解析：是较好的显影剂之一。
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下列属于显影剂的是（）
A.菲尼酮
B.溴化银
C.硫化钠
D.碳酸钾
E.钨酸钙
参考答案：A
解析：是较好的显影剂之一。
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