试题内容
PCDA（Deming cycle）is an iterative four－step management method used in continual improment of processes and products.During the（）phase，the data and results gathered from the do phase are evaluated.Data is compared to the expected outcomes to see any similarities and differences.
A、plan
B、do
C、check
D、act
软题库参考答案：C（仅供参考）
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