সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন
When does the digital telephone system starts in Bangladesh firstly?
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 উত্তরঃ 4 January, 1990
এ সম্পর্কিত আরো প্রশ্ন দেখুন
- When does the digital telephone system starts in Bangladesh firstly?
- Which company owns the former SEBA Telecom of Bangladesh?
- Which is the chief News Agency of Bangladesh?
- How many satellite station is in Bangladesh?
- Celloler telephone start in Bangladesh at--
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Transportation and Communication System