Plastic packaging. Nitrogen injection and vacuum treatment. Rice is stored for a long time, and many people use this kind.
Paper products, linen, etc. But the above two kinds are more common.
One is to ensure that the cost is low and suitable for large circulation.
Second, the storage period is long, which is suitable for the southern market and long-term storage.
Q: How long does it take for Guangdong psychological counselors to take the online exam?
A: The online examination tim