& Reading
A. The text contains information about bar codes. Look at the sub heading. What information is contained in a bar code?
B. What other information do you think bar codes carry? Scan the text quickly and see if you are right?
& Reading
A. The text contains information about bar codes. Look at the sub heading. What information is contained in a bar code?
B. What other information do you think bar codes carry? Scan the text quickly and see if you are right?
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