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After You Stare at a Pattern of Narrow Black Lines

question 117

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After you stare at a pattern of narrow black lines for a minute,you now stare at slightly wider lines.How will your perception of those lines differ from your usual perception?​


Definitions:

City field

A specific field in databases or forms designated for entering or displaying a city's name.

Null Values

Special markers in databases designated for fields with unknown or inapplicable information.

Is Null

A condition used in SQL to check for empty fields in a database.

Data Type

A classification identifying the type of data that can be held by a column in a database or a variable in programming, such as integer, text, or boolean.

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