A File Must Be ________ Before Data Can Be Written

question 9

Multiple Choice

A file must be ________ before data can be written to or read from it.

• A) closed
• B) opened
• C) declared
• D) initialized
• E) None of the above

Recognize the importance of environmental factors and community infrastructure in disease prevention.

Understand the historical development of public health initiatives and their impact on community health.

Analyze the role of government and non-governmental organizations in the advancement of public health.

Identify key figures and their contributions to public health and nursing.

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Definitions:

UV-visible Spectrum

The absorption or reflectance spectrum in the ultraviolet and visible light region that is used to identify chemical substances.

Aromatic Hydrocarbons

Compounds made up of hydrogen and carbon that contain a planar ring of continuously overlapping p-orbitals, known for their stability and unique chemical behavior.

IR Spectrum

A graphical representation of the infrared light absorption of a substance, used to identify chemical bonds and functional groups within a molecule.

M-xylene

An isomer of xylene with two methyl groups attached to the benzene ring in the meta positions, used as a solvent and chemical precursor.