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【Daily Question】Chemical Analysis Edition, May 20, 2019

2019-05-20View Original

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This post was last edited by zjp on 2019-5-20 09:13. Multiple-choice question: Compare the precision of the measurement results for the two groups (). Group A: 0.19%, 0.19%, 0.20%, 0.21%, 0.21% Group B: 0.18%, 0.20%, 0.20%, 0.21%, 0.22% A. Groups A and B are the same. B. Group A has a higher value than Group B. C. Group B has a higher value than Group A. D. It is impossible to determine. B

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