piece,grain,drop:attaches,is attached,attach
Invented in 1969,RFID chips are about the size of a ______of sand.Each chip has a unique ID number and ______ to the product.
grain; is attached
piece,grain,drop:attaches,is attached,attach
Invented in 1969,RFID chips are about the size of a ______of sand.Each chip has a unique ID number and ______ to the product.
grain; is attached