??? ???? '?'? ???? '??'? ???? ??? '?'? '?'? ???? ?? ?? ??? ????. ??? ???? ??? ??? ????.Planet-Wide Internet (also known as WWW or W3) can be a hypertext-dependent info system. Any word in a hypertext doc might be specified like a pointer to a unique hypertext doc where more info pertaining to that term can be found. The reader can open up the secon