When does the digital telephone system starts in Bangladesh firstly?

বাংলাদেশ বিষয়াবলি Transportation and Communication System 07 Oct, 2020

প্রশ্ন When does the digital telephone system starts in Bangladesh firstly?

  • ক.
    3 March, 1990
  • খ.
    4 January 1991
  • গ.
    4 January, 1990
  • ঘ.
    3 February, 1990

সঠিক উত্তর

4 January, 1990

মন্তব্য

There are no comments yet.
Authentication required

You must log in to post an answer.

Log in