c*******r
发帖数: 272 | 1 Dose blue six sigma certification will enhance my competency in job market?
thank you | f**********i
发帖数: 22 | 2 Is there any blue blet existing? I only heard green belt, white belt, and
black belt, yellow belt. | c*******r
发帖数: 272 | 3 Yes it is.
Is black belt difficult to achieve?
【在 f**********i 的大作中提到】
: Is there any blue blet existing? I only heard green belt, white belt, and
: black belt, yellow belt.
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