题目内容
_______ tags are tiny chips that can be embedded into almost anything and contain information used to track and locate lost pets; to monitor production and update inventory; to record prices, product descriptions, and locations of retail items.
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_______ recognition is often used to score standardized multiple-choice tests.
_______ are specialized digital video cameras that capture images and send them to a computer for broadcast over the Internet.
_______ connect to computers and project computer output and can control the computer with the use of a special pen.
_______ printers use a technology similar to that used in a photocopying machine.
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