题目内容 (请给出正确答案)
提问人:网友w*****2 发布时间:2023年1月8日 21:05
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为保证滴丸圆整、丸重差异小,正确的是().

A . A、滴制时保持恒温

B . B、滴制液静压恒定

C . C、滴管口径合适

D . D、及时冷凝

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