There are ______ types of protocols used for transferring email.

A. two
B. four
C. six
D. three

A. two

Computer Science & Information Technology

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The action of pressing the left mouse button twice in rapid succession is known as ________

A) double-clicking B) triple-clicking C) right-clicking D) clicking

Computer Science & Information Technology

The Show/Hide button is used to turn the display of nonprinting characters on and off

Indicate whether the statement is true or false

Computer Science & Information Technology