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Pay homage to angels in white， Thank you for your selfless dedication for the miracle of life.

In my eyes, you are still as beautiful as ever. Thank you,Mom.  

Remember to smile to who you meet today,and don't forget to smile to yourself by the way.

1. We must analyze whether the barcode printed is complete. Of course, you cannot buy a professional detector to detect it. Ordinary users can see whether the barcode is complete with the naked eye. As we all know, the barcode is composed of black bars and white bars according to the corresponding standards Yes, you can see if the printed black bar is clear. If there are some white dots on the black bar, it means that the bar code is not very good, but the scanner with better performance can be read. If the black bar is printed Not all means that the barcode has been completely unreadable, it […]