<span>An attribute in a relation of a database that serves as the primary key of another relation in the same database is called a</span>
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no I dont where is that at
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Around seven billion people
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Option a electronic switch used on FPDs
Explanation:
A thin film transistor (TFT) is an electronic switch which is commonly used in a liquid crystal display (LCD). TFT derives its name by the way how it is produced. It is produced by layering thin films of semiconductor. TFT is a type of transistor which is used to control state every individual pixel in a LCD. TCT can change the states of pixels (on and off) very quickly.
<span>A. Certificate of License</span>
