A digibox changes a digital signal to an analogue signal.Why is one neede to receive digital TV at present?

A digibox changes a digital signal to an analogue signal.Why is one needed to receive digital TV at present A digibox changes a digital signal to an analogue signal.Why is one neede to receive digital TV at present? What changes a pear into a pearl WHAT CHANGES A PEAR INTO A PEARL? What changes a pear into a pearl? What changes a pear into a peal what changes a lad into a lady? A leopard never changes its spots.翻译 A gosper never changes its spots.gosper I am myself short of( ) a,a change b,changes c,change d,the changes small changes make a difference为什么要有个a What changes a pear into a pearl?怎么回答? 谜语:what changes a pear into a pearl? 脑筋急转弯.1 what changes a pear into a pearl? A mother's love never changes.为什么是changes 而不是changed. A budget line changes only if the person's budget changes. 求一篇英语演讲,A word that changes the world. 翻译it is a history of ringing the changes