Now I graduated from university, majoring in petrochemical industry, and worked as a chemist for one year. What certificate can I take? Useful for salary and promotion

In view of what you said, I'll give you some suggestions for your reference:

1. I'm not very clear about some certificates I need for my current job. Chemists can have quality inspection, laboratory tests and related certificates.

2. Some management certificates, such as human resource managers and professional managers.

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Dear classmates, I love you. Are you ready? (from low to high)

Hello, class.

First, review q