Doubly linked chain
When a linked chain contains nodes that reference both the next node and the previous node, it is called a doubly linked chain. This type of chain is often used in data structures because it provides a way to easily traverse the data in both directions. However, because each node must reference both the next node and the previous node, doubly linked chains require more memory than singly linked chains.
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Numeric keypad. Alternatively referred to as the 10-key, number pad, numeric keyboard, numpad, or ten key, the numeric keypad is a 17-key keypad usually found on the far right side of a standard PC keyboard
The answers:
1 <span>B. help find a word that means the same or a similar definition as another word
2 C. interesting
3 </span><span>B. organize thoughts and ideas
4 </span><span>D. editing or comparing two different documents</span>
