题目内容 (请给出正确答案)
提问人:网友l******8 发布时间:2022年4月6日 07:51
[单项选择题]

滴定管内如果有明显油污,则()

A.直接用自来水冲洗

B.用待测溶液淋洗2~3次

C.用5%的盐酸溶液洗涤

D.用铬酸洗液浸泡

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