The amount of nitrogen contained in a certain serum is 10g/L, and how many concentration of protein in the sample?
A、52.5g／L
B、62.5g／L
C、57.5g／L
D、72.5g／L
E、67.5g／L
发布时间：2025-02-20 03:19:40
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答案：67.5g／L
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