Which is better, qc of pharmaceutical factory or pharmaceutical sales office?

Doing QC well is nothing more than transferring to R&D department for analysis or QA. Every day, samples should be taken, mixed and recorded. Ten years later, I was a skilled operator. In the sales office, you are in contact with regional managers and customers (accumulated a lot of contacts), and you are dealing with the most realistic problems in the market (medical policies, laws and regulations, enterprise operations, etc.). Even if you still do this for ten years, your speech and vision will be turned upside down. Of course, this is only my personal opinion, and I still have to consider it carefully according to my own personality.